Documentation

View documentation related to Bull Moose Tube’s structural pipe & tubing. Documents include ISO certifications, size charts and more.

Hollow Structural Sections (HSS)

Welding Guide

Document Text:

Stratusteel
Next Generation HSS

We’re taking high-strength, lightweight steel to new heights.

BMT Welding Guide for Stratusteel used in transportation and other heavy equipment industries. In this guide you will find suggestions for using Stratusteel tubing in applications such as transportation and heavy equipment. This is intended to be a general guideline only—please always refer to your tube manufacturer or raw steel provider’s specifications where necessary.

Table of Contents

Introduction 3

Preparation 4
Welding 4
Recommended Welding Materials for Stratusteel 4

Table #1: Recommended weld wire for Stratusteel 4

Preheat and Inter-pass Temperature Considerations 5
Hydrogen Cracking Risks 5

Table #2: Rules of thumb for handling prior to welding 5

Heat Affected Zone (HAZ) or Soft Zones 5
Direction and Passes for Welding 6

Figure #1: Impact of starting welds in joint locations 6

Figure #2: Improved impact of starting welds in parent material 6

7.1. Welding Parameters Analyzed 7

Table #3: Weld parameters used for thermal stress analysis 7

7.2 Real-World Example of Welding Parameters Used in Construction of Trailer Frames 7

Table #4: Weld Parameters used during real-world construction of 8-gauge 3”x5” Stratusteel 7

Fabrication Considerations 8
Final Considerations 8

Stratusteel™ hollow steel tubing from Bull Moose is stronger than steel, and lighter than aluminum configured to bear the same load. As a result, you can reduce the weight of your design by as much as 35% while getting the strength and other benefits of steel. With Stratusteel, your designs will be dramatically lighter, stronger, and more efficient!

Introduction

Welding of Stratusteel will be different than typical A500 50MY – 80MY tubing. Stratusteel is greater than or equal to 100MY, and as a result, welding requirements are slightly different. When welded properly, Stratusteel will ensure long-lasting performance while making your designs lighter, stronger and more efficient to manufacture.

1. Preparation

All well-established methods or processes of preparation can be used with Stratusteel. However, attention should be paid to any potential buildup of materials on the surface of weld joint, such as thin oxides films from thermal cutting. Make sure all joints are well cleaned prior to welding. If using a plasma cutting for joint preparation, oxygen should be used to minimize risk of porosity in the weld material during welding. It is also possible to use a grinding method, which would remove the risk of porosity in the weld material. It’s recommended to grind down by at least 0.2mm if using this method post plasma cutting.

2. Welding

All common fusion welding methods can be used for welding Stratusteel, such as:

MAG/MIG – Welding
MMA-Welding
TIG-Welding
Plasma Welding
Submerged Arc Welding
Laser Welding

While other methods can be used, these are the most common for Stratusteel. Of these, MAG/MIG welding is the most commonly used welding technique known today. When T-joint welds are close to the edge with a thickness ≥ 8 mm, there should be no sharp defects at the edge. Such defects can lead to stresses in the thickness direction, which can lead to cracking during welding. These welds should be avoided. Shearing is not expected in the use of Stratusteel due to its shape and size. However, if shearing is used, welding should not occur near the sheared area, as it gives increases in stress at the shear location (which can lead to cracking at the weld location in contact with the shear location). It’s recommended that if the location must be used, that it’s thermally cut instead of sheared.

3. Recommended Welding Materials for Stratusteel

Stratusteel should be welded with high strength solid welding wire

MAG-Welding (GMAW)	MAG Cored Wire	MMW Coated Electrode	Submerged Arc Welding
AWS:A5.28 ER100S-X	AWS:A5.29 E11XT-X	AWS:A5.5 E11018	AWD:A5.23 F11X
AWS:A5.28 ER110S-X	EN 18726(-a)T69X	EN757 E69X	EN 26304(-A) S69X
EN 16834(-A) 69X

Table #1: Recommended weld wire for Stratusteel

4. Preheat and Inter-pass Temperature Considerations

Multi-pass welding may cause the temperature in the welded joint to rise to a level that causes the strength to drop. This is most critical for welds below 500mm, because the temperature will drop between weld bead formations. The maximum inter-pass temperature for Stratusteel is 100 degrees C. For short welds, it is recommended to allow the temperature to cool to 150 degrees C prior to starting the next weld bead. For best results, it is recommended for Stratusteel to be at standard room temperature (temp ≥ 23 degrees C ≤100 degrees C) prior to welding.

5. Hydrogen Cracking Risks

This risk of hydrogen cracking is very low; however, it can occur under very specific conditions. Hydrogen cracking will occur if European Standard 1011-2 is met, whereby a very high hydrogen content > 15 ml/100g of weld metal material and an extremely low heat input of < 0.5Kj/mm are applied, with a combined thickness of 30mm of Stratusteel. These conditions are very rare— however, it is critical to monitor and prevent these conditions in order avoid risk of hydrogen cracking during welding. To avoid this risk, it’s recommend that you use weld materials with low hydrogen content ≤ 10 ml/100g weld metal. When welding Stratusteel it’s important to also follow good general welding practice to avoid increased risk of hydrogen cracking. Rules of thumb to follow to minimize hydrogen cracking are:

Minimize the hydrogen content in and around the prepared joint.	Minimize the stresses in the weld join.
Use the correct pre-heat and inter pass temperatures.	Do not use welding consumables of a higher strength than is necessary.
Use welding consumables with low hydrogen content.	Arrange the weld sequence so that the residual stresses are reduced during the welding process along the weld seem nor in the welded joints.
Keep impurities out of the weld area.	Set the gap in the joint to a maximum of 3mm.

Table #2: Rules of thumb for handling prior to welding

6. Heat Affected Zone (HAZ) or Soft Zones When using Stratusteel, soft zones can form in the HAZ. This can happen as a result of changes in the microstructure during welding. However, if normal heat inputs are used, then these soft zones typically do not influence the strength of the weld. For example, if an inter-pass temperature of 150 degrees C is maintained using a single pass, then the heat input which would affect Stratusteel could be increased by 10 – 15% for a butt weld, and approximately 40 – 50% for a filet weld. Following the inter-pass temperature limits will reduce if not eliminate any impact in HAZ leading to soft zones.

7. Direction and Passes for Welding When using Stratusteel we recommend that you start your weld bead in the larger section of the parent material and then work towards the joint. For two pass welds we recommend that once at the joint, the welder restart from the larger section going into the joint (as opposed to returning from the joint to larger section). Please see figure #1 as a representation of starting welds at joint locations.

Restarting second pass welds in the larger parent material allows for inter pass cooling and reduction of stresses at the joint. If welding a plate, it is recommended that the plate use a notch of at least 1” in radius at the joint to prevent concentration of stresses at the joint an follow the inter pass recommendations above.

7.1. Welding Parameters Analyzed As part of this guide, extensive thermal analysis was performed in order to generate stress analysis curves and impact of welding conditions. Below is the table of welding parameters used for this section:

Material: ¼ wall Stratusteel
Weld Type: MIG – Non-Pulsed
Voltage: 23-25V
Amperage: 300-360A
Weld Speed: 24-26 in/min
Preheat: N/A (25 C)
Weld Size: 3/16” fillet +/-.03125

Table #3: Weld parameters used for thermal stress analysis

7.2 Real-World Example of Welding Parameters Used in Construction of Trailer Frames Below is a table of real-world welding parameters which yielded the best results for the gauge of tubing applied:

Material: 8-gauge 3”x5” Stratusteel
Weld Type: MIG – Non-Pulsed
Voltage: 28V
Amperage: 245A
Weld Wire Speed: 420 ipm (i.e., welder speed should still be as above)
Weld Wire Size: .035 weld wire

Table #4: Weld Parameters used during real-world construction of 8-gauge 3”x5” Stratusteel

8. Fabrication Considerations When fabricating (welding) Stratusteel HSS, consideration should be taken to reduce the residual stresses imparted into the HSS from the shop/field welding process. The weld seam on the HSS should be oriented, if possible, where thermal stresses will not affect the weld seam. For example, orienting the HSS weld seam in a restrained position under a reinforcement plate, bracket, etc., to minimize buildup of residual stresses. Cutouts and holes, where possible, should be placed away from or opposite the weld seam face.

9. Final Considerations All steps mentioned above should be taken when welding Stratusteel. In addition, you should make every effort to have a clean, moisture-free weld area for best results. Condensation, dirt, and any other foreign material should be removed prior to welding. Always monitor and prevent conditions that could cause hydrogen cracking. Please feel free to contact us at Bull Moose Tube Technical Support with any questions or concerns. Bull Moose maintains an unwavering commitment to quality, precision, and technical expertise. For reliable technical support, or capable collaboration with product development, please call 888.227.5430, or email techsupport@bullmoosetube.com.

HSS Sheet

Document Text:

Depend on the strength and reliability of Bull Moose when it comes to hollow Structural Steel Tube.

Our products stand the test of time. Whether exposed to the elements or hidden behind walls, we know that your structure and tenants are counting on us. You need reliable service and products of exceptional strength. You need Bull Moose.

Direct-form manufacturing makes us unique. Direct-form means we can use the highest grade HSLA steel, which is directly formed into a tube. This minimizes the cold-working process, which can change the characteristics of the steel.

BULL MOOSE ADVANTAGES:

Tubes with strength ranges of 46 KSI to 110 KSI
Tighter tolerances, sharper edges and straighter tubes
Widest variety of custom sizes and lengths, including metric sizes and cut-to- length options

OTHER BENEFITS/SERVICES:

Specialized packaging
Leading availability and fastest delivery due through 8 North American sites
Readily available weathering grade steel
Readily available Charpy V-Notch steel
In-line NDT weld testing available on all tube

Leading the Herd

Founded in 1962, Bull Moose Tube has been delivering products of formidable quality for more than half a century. With sizes ranging from 1-1/2” square through 18” x 6” rectangle, and wall thicknesses of 1/8” through 5/8” Bull Moose features one of the largest size ranges of HSS products in the industry.

And with eight North American manufacturing and warehouse facilities, Bull Moose has the HSS products you need when you need them.

You need strength and reliability. You need availability.

You need Bull Moose Tube.

EIGHT WORLD-CLASS LOCATIONS DELIVERING BEST-IN-CLASS PRODUCTS

Stratusteel® Brochure

Document Text:

Stratusteel

110 KSI Steel Tube

It’s Might… Made Light™.

The Strongest, Lightest Steel Tubes on the Planet

LIGHTWEIGHT STEEL WITH HEAVYWEIGHT PERFORMANCE

Stratusteel® is a revolutionary hollow structural steel tubing that delivers an extraordinary set of characteristics:

High Strength = Yield strengths as high as 110KSI, enabling your products to support greater loads and span greater distances.

Light Weight = 35% lighter than an equivalent A500 50KSI product!

2x Harder than Steel = Your products become more durable and sustainable; remain better-looking, longer.

CUSTOM SIZES AND PROFILES

Stratusteel is available in a broad range of standard and metric sizes. But our variable tooling mills also allow for custom tube profiles. We can optimize wall thickness and outer dimensions/contours for your specific needs.

Customizing for your exact application saves you from buying bulkier stock than you really need…making Stratusteel a high value custom product for a standard steel price!

Here’s an example:

Your design shows that a 3.83” x 5.75” x 0.197” HSS will work on your product (weighing 11.98 lbs/ft.).

If the nearest size in conventional HSS is 4” x 6” x .025” (weighing 15.62 lbs/ft.), you’ll experience an unnecessary 23% increase in weight and thus a 23% increase in cost!

Stratusteel would enable you to avoid those increases with efficient, optimal dimensions and weight.

HOW DOES STRATUSTEEL BENEFIT YOU?

ENGINEERS: Explore new design options with lighter, more streamlined products. Switching to Stratusteel

from ASTM A500 Grade B can enable a wall thickness reduction of 35%. It may even enable you to reduce the number of steel components in your assembled product.

PURCHASING AGENTS: Every pound of steel you don’t have to buy is a direct savings for your bottom line.

SHIPPERS: Smaller, lighter products mean fuller shipments and lower shipping costs. This enables you to

get the most out of every freight mile—ultimately reduces demands on drivers’ time, and fuel consumption.

MARKETERS: With Stratusteel, your product may potentially be positioned as the lightest, strongest of its kind on the market.

Finishes available:

Post-pickled in oil
EPS (Eco-Pickled Surface)

Stratusteel

HSS Stratusteel-100 Section Properties

HSS STRATUSTEEL®–100 SECTION PROPERTIES / SQUARES & RECTANGLES

Nominal Size					Weight per ft	Design Wall Thick.				X-X Axis				Y-Y Axis				Torsional Stiffness Constant	Torsional Shear Constant	Surface Area
Depth	Width	Wall			Weight per ft		t	b/t	h/t	area	lx	Sx	rx	Zx	ly	Sy	ry	zy	j	h	/ft.
in.	in.	in	ga.	in	lb.	in.			ft.2	in.4	in.3	in.	in.3	in.4	in.3	in.	in.3	in.4	in.3	ft.2
3	1.5	-	14	0.083	2.39	0.077	16.5	36.0	0.65	0.756	0.504	1.07	0.627	0.257	0.343	0.627	0.387	0.624	0.639	0.73
3	1.5	-	12	0.109	3.07	0.101	11.9	26.7	0.84	0.948	0.632	1.06	0.796	0.320	0.426	0.616	0.490	0.789	0.815	0.72
3	1.5	-	11	0.120	3.35	0.112	10.4	23.8	0.93	1.03	0.686	1.05	0.869	0.346	0.461	0.611	0.534	0.861	0.892	0.72
2	2	-	14	0.083	2.11	0.077	23.0	23.0	0.58	0.351	0.351	0.780	0.412	0.351	0.351	0.780	0.412	0.559	0.568	0.64
2	2	-	12	0.109	2.70	0.101	16.8	16.8	0.74	0.437	0.437	0.768	0.521	0.437	0.437	0.768	0.521	0.708	0.724	0.64
2	2	-	11	0.120	2.94	0.112	14.9	14.9	0.81	0.437	0.473	0.763	0.568	0.473	0.473	0.763	0.568	0.773	0.793	0.63
2	2	-	10	0.134	3.25	0.125	13.0	13.0	0.90	0.513	0.513	0.756	0.621	0.513	0.513	0.756	0.621	0.846	0.871	0.63
2	2	-	8	0.165	3.88	0.165	9.12	9.12	1.14	0.62	0.62	0.737	0.768	0.62	0.62	0.737	0.768	1.05	1.09	0.619
4	2	-	14	0.083	3.24	0.077	23.0	48.9	0.89	1.86	0.928	1.45	1.14	0.636	0.636	0.848	0.708	1.52	1.16	0.98
4	2	-	12	0.109	4.19	0.101	16.8	36.6	1.14	2.35	1.18	1.43	1.46	0.802	0.802	0.837	0.905	1.94	1.49	0.97
4	2	-	11	0.120	4.58	0.112	14.9	32.7	1.26	2.57	1.29	1.43	1.61	0.873	0.873	0.832	0.991	2.13	1.64	0.97
4	2	-	10	0.134	5.07	0.125	13.0	29.0	1.40	2.82	1.41	1.42	1.77	0.954	0.954	0.826	1.09	2.34	1.81	0.96
4	2	-	8	0.165	6.13	0.165	9.12	21.2	1.8	3.52	1.76	1.4	2.24	1.18	1.18	0.81	1.37	2.95	2.3	0.953
4	2	3/16	0.1875	0.1875	6.87	0.188	7.64	18.3	2.02	3.88	1.94	1.39	2.49	1.29	1.29	0.799	1.52	3.27	2.57	0.946
3	3	-	14	0.083	3.24	0.077	36.0	36.0	0.89	1.25	0.833	1.19	0.964	1.25	0.833	1.19	0.964	1.95	1.31	0.98
3	3	-	12	0.109	4.19	0.101	26.7	26.7	1.14	1.58	1.06	1.18	1.23	1.58	1.06	1.18	1.23	2.51	1.69	0.97
3	3	-	11	0.120	4.58	0.112	23.8	23.8	1.26	1.73	1.15	1.17	1.35	1.73	1.15	1.17	1.35	2.75	1.86	0.97
3	3	-	10	0.134	5.07	0.125	21.0	21.0	1.40	1.90	1.26	1.16	1.49	1.90	1.26	1.16	1.49	3.03	2.06	0.96
3	3	-	8	0.165	6.13	0.165	15.2	15.2	1.8	2.36	1.57	1.15	1.89	2.36	1.57	1.15	1.89	3.89	2.36	0.953
3	3	3/16	0.1815	0.1875	6.87	0.188	13	13	2.02	2.61	1.74	1.14	21	2.61	1.74	1.14	2.1	4.29	2.95	0.946

HSS STRATUSTEEL®–100 SECTION PROPERTIES / SQUARES & RECTANGLES

Nominal Size					Weight per ft	Design Wall Thick.				X-X Axis				Y-Y Axis				Torsional Stiffness Constant	Torsional Shear Constant	Surface Area
Depth	Width	Wall			Weight per ft		t	b/t	h/t	area	lx	Sx	rx	Zx	ly	Sy	ry	zy	j	h	/ft.
in.	in.	in	ga.	in	lb.	in.			ft.2	in.4	in.3	in.	in.3	in.4	in.3	in.	in.3	in.4	in.3	ft.2
4	3	-	14	0.083	3.80	0.077	36.0	48.9	1.04	2.45	1.22	1.53	1.45	1.58	1.05	1.23	1.19	3.00	1.76	1.14
4	3	-	12	0.109	4.93	0.101	26.7	36.6	1.35	3.12	1.56	1.52	1.86	2.01	1.34	1.22	1.53	3.86	2.28	1.14
4	3	-	11	0.120	5.39	0.112	23.8	32.7	1.49	3.42	1.71	1.52	2.04	2.20	1.47	1.22	1.68	4.24	2.51	1.13
4	3	-	10	0.134	5.98	0.125	21.0	29.0	1.65	3.76	1.88	1.51	2.25	2.41	1.61	1.21	1.85	4.68	2.78	1.13
4	3	-	8	0.160	7.05	0.149	17.1	23.8	1.94	4.35	2.18	1.50	2.63	2.79	1.86	1.20	2.16	5.47	3.26	1.12
4	3	3/16	0.1875	0.1875	8.15	0.188	13	18.3	2.4	5.24	2.62	1.48	3.21	3.35	2.23	1.18	2.63	6.68	4	1.11
6	3	-	14	0.083	4.93	0.077	36.0	74.9	1.35	6.48	2.16	2.19	2.64	2.24	1.49	1.29	1.64	5.27	2.66	1.48
6	3	-	12	0.109	6.41	0.101	26.7	56.4	1.75	8.32	2.77	2.18	3.41	2.86	1.91	1.28	2.11	6.80	3.45	1.47
6	3	-	11	0.120	7.03	0.112	23.8	50.6	1.93	9.14	3.05	2.17	3.75	3.13	2.09	1.27	2.32	7.48	3.80	1.46
6	3	-	10	0.134	7.81	0.125	21.0	45.0	2.15	10.1	3.36	2.17	4.15	3.45	2.30	1.27	2.57	8.27	4.22	1.46
6	3	-	8	0.160	9.23	0.149	17.01	37.3	2.54	11.8	3.92	2.15	4.87	4.00	2.67	1.26	3.01	9.69	4.96	1.45
6	3	3/16	0.1875	0.1875	10.7	0.188	13	28.9	3.15	14.3	4.77	2.13	5.98	4.84	3.23	1.24	3.69	11.9	6.12	1.80
8	3	-	12	0.109	7.89	0.101	26.7	76.2	2.15	17.0	4.25	2.81	5.36	3.71	2.47	1.31	2.70	9.91	4.62	1.80
8	3	-	11	.120	8.66	0.112	23.8	68.4	2.38	18.7	4.68	2.80	5.91	4.07	2.71	1.31	2.97	10.9	5.10	1.80
8	3	-	10	0.134	9.63	0.125	21.0	61.0	2.65	20.7	5.17	2.80	6.55	4.48	2.99	1.30	3.29	12.1	5.65	1.79
8	3	-	8	0.160	11.41	0.149	17.1	50.7	3.13	24.2	6.06	2.78	7.70	5.21	3.48	1.29	3.86	14.2	6.66	1.78
8	3	3/16	0.1875	0.1875	13.25	0.188	13	39.6	3.9	29.7	7.43	2.76	9.51	6.33	4.22	1.27	4.74	17.4	8.23	2.14
10	3	-	12	0.109	9.38	0.101	26.7	96.0	2.56	30.0	6.01	3.43	7.72	4.56	3.04	1.33	3.28	13.1	5.79	2.13
10	3	-	11	0.120	10.29	0.112	23.8	86.3	2.83	33.1	6.61	3.42	8.51	5.00	3.33	1.33	3.62	14.4	6.39	2.13
10	3	-	10	0.134	11.45	0.125	21.0	77.0	3.15	36.6	7.32	3.41	9.44	5.51	3.68	1.32	4.01	16.0	7.09	2.13
10	3	-	8	0.160	13.58	0.149	17.1	64.1	3.73	43.0	8.59	3.39	11.1	6.43	4.28	1.31	4.71	18.7	8.36	2.21

HSS STRATUSTEEL®–100 SECTION PROPERTIES / SQUARES & RECTANGLES

Nominal Size					Weight per ft	Design Wall Thick.				X-X Axis				Y-Y Axis				Torsional Stiffness Constant	Torsional Shear Constant	Surface Area
Depth	Width	Wall			Weight per ft		t	b/t	h/t	area	lx	Sx	rx	Zx	ly	Sy	ry	zy	j	h	/ft.
in.	in.	in	ga.	in	lb.	in.			ft.2	in.4	in.3	in.	in.3	in.4	in.3	in.	in.3	in.4	in.3	ft.2
10	3	3/16	0.1875	0.1875	15.8	0.188	13	50.2	4.66	52.8	10.6	3.37	13.8	7.82	5.21	1.3	5.8	23	10.3	2.11
9 1/2	3 1/2	-	12	0.109	9.38	0.101	31.7	91.1	2/56	28.6	6.01	3.34	7.56	6.07	3.47	1.54	3.77	16.3	6.45	2.14
9 1/2	3 1/2	-	11	0.120	10.29	0.112	28.3	81.8	2.83	31.5	6.62	3.33	8.35	6.67	3.81	1.54	4.15	17.9	7.12	2.13
9 1/2	3 1/2	-	10	0.134	11.45	0.125	25.0	73.0	3.15	34.8	7.33	3.33	9.26	7.36	4.21	1.53	4.60	19.8	7.90	2.13
9 1/2	3 1/2	-	8	0.160	13.48	0.149	20.5	60.8	3.73	40.9	8.61	3.31	10.9	8.60	4.91	1.52	5.41	23.3	9.33	2.12
9 1/2	3 1/2	3/16	0.1875	0.191	16.08	0.178	16.7	50.4	4.42	47.9	10.1	3.29	12.9	10	5.73	1.51	6.36	27.4	11	2.12
10	3 1/2	-	12	0.109	9.75	0.101	31.7	96.0	2.66	32.5	6.50	3.50	8.22	6.36	3.63	1.55	3.94	17.3	6.79	2.22
10	3 1/2	-	11	0.120	10.70	0.112	28.3	86.3	2.94	35.8	7.16	3.49	9.07	6.99	3.99	1.54	4.34	19.1	7.50	2.22
10	3 1/2	-	10	0.134	11.91	0.125	25.0	77.0	3.27	39.6	7.93	3.48	10.1	7.72	4.41	1.54	4.81	21.2	8.32	2.21
10	3 1/2	-	8	0.160	14.13	0.149	20.5	64.1	3.88	46.6	9.31	3.47	11.9	9.02	5.15	1.53	5.66	24.9	9.82	2.21
10	3 1/2	3/16	0.1875	0.1875	16.44	0.188	15.6	50.2	4.84	57.4	11.5	3.44	14.7	11	6.29	1.15	6.99	30.7	12.2	2.20
4	4	-	14	0.083	4.36	0.077	48.9	48.9	1.19	3.04	1.52	1.60	1.75	3.04	1.52	1.60	1.75	4.70	2.37	1.31
4	4	-	12	0.109	5.67	0.101	36.6	36.6	1.55	3.89	1.95	1.58	2.25	3.89	1.95	1.58	2.25	6.07	3.07	1.30
4	4	-	11	0.120	6.21	0.112	32.7	32.7	1.71	4.27	2.13	1.58	2.48	4.27	2.13	1.58	2.48	6.69	3.38	1.30
4	4	-	10	0.134	6.89	0.125	29.0	29.0	1.90	4.70	2.35	1.57	2.74	4.70	2.35	1.57	2.74	7.40	3.75	1.30
4	4	-	8	0.160	8.14	0.149	23.8	23.8	2.24	5.46	2.73	1.56	3.20	5.46	2.73	1.56	3.20	8.68	4.41	1.29
4	4	3/16	0.1875	0.1875	9.42	0.188	18.3	18.3	2.78	6.61	3.31	1.54	3.92	6.61	3.31	1.54	3.92	10.7	5.44	1.28
4	4	1/4	0.25	0.25	12.21	0.25	13	13	3.59	8.22	4.11	1.51	4.97	8.22	4.11	1.51	4.97	13.5	6.97	1.26
4	4	5/16	0.3125	0.3125	14.83	0.313	9.78	9.78	4.36	9.59	4.8	1.48	5.91	9.59	4.8	1.48	5.91	16.1	8.39	1.24
6	4	-	14	0.083	5.49	0.077	48.9	74.9	1.50	7.83	2.61	2.28	3.09	4.23	2.11	1.68	2.35	8.52	3.58	1.64

HSS STRATUSTEEL®–100 SECTION PROPERTIES / SQUARES & RECTANGLES

Nominal Size					Weight per ft	Design Wall Thick.				X-X Axis				Y-Y Axis				Torsional Stiffness Constant	Torsional Shear Constant	Surface Area
Depth	Width	Wall			Weight per ft		t	b/t	h/t	area	lx	Sx	rx	Zx	ly	Sy	ry	zy	j	h	/ft.
in.	in.	in	ga.	in	lb.	in.			ft.2	in.4	in.3	in.	in.3	in.4	in.3	in.	in.3	in.4	in.3	ft.2
6	4	-	12	0.109	7.15	0.101	36.6	56.4	1.95	10.1	3.36	2.27	4.00	5.43	2.71	1.67	3.04	11.0	4.64	1.64
6	4	-	11	0.120	7.84	0.112	32.7	50.6	2.16	11.1	3.69	2.27	4.41	5.96	2.98	1.66	3.35	12.2	5.12	1.63
6	4	-	10	0.134	8.72	0.125	29.0	45.0	2.40	12.2	4.08	2.26	4.88	6.57	3.29	1.66	3.71	13.5	5.68	1.63
6	4	-	8	0.160	10.32	0.146	23.8	37.3	2.83	14.3	4.77	2.25	5.74	7.67	3.84	1.65	4.35	15.8	6.70	1.62
6	4	3/16	0.1875	0.1875	11.97	0.188	18.3	28.9	3.53	17.5	5.83	2.23	7.07	9.34	4.67	1.63	5.36	19.6	8.3	1.61
6	4	1/4	0.25	0.25	15.62	0.25	13	21	4.59	22.1	7.37	2.19	9.06	11.7	5.85	1.6	6.84	25	10.7	1.6
6	4	5/16	0.3125	0.3125	19.08	0.313	9.78	16.2	5.62	26.2	8.73	2.16	10.9	13.9	6.95	1.57	8.22	30.1	13	1.58
6	4	3/8	-	0.381	22.68	0.354	8.3	13.9	6.26	28.6	9.52	2.14	12.0	15.1	7.53	1.55	9.04	33.2	14.4	1.57
8	4	-	12	0.109	8.64	0.101	36.6	76.2	2.36	20.2	5.04	2.93	6.16	6.96	3.48	1.72	3.83	16.4	6.22	1.97
8	4	-	11	0.120	9.48	0.112	32.7	68.4	2.61	22.2	5.55	2.92	6.79	7.65	3.83	1.71	4.22	18.1	6.86	1.97
8	4	-	10	0.134	10.54	0.125	29.0	61.0	2.90	24.6	6.14	2.91	7.53	8.45	4.23	1.71	4.67	20.0	7.62	1.96
8	4	-	8	0.160	12.49	0.149	23.8	50.7	3.43	28.8	7.20	2.90	8.87	9.88	4.94	1.70	5.50	23.6	9.00	1.96
8	4	3/16	0.1875	0.1875	14.53	0.188	18.3	39.6	4.28	35.4	8.85	2.88	11	12.1	6.05	1.68	6.79	29.2	11.2	1.95
8	4	1/4	0.25	0.25	19.02	0.25	13	29	5.59	45.1	11.3	2.84	14.1	15.3	7.65	1.65	8.72	37.5	14.5	1.93
8	4	5/16	0.3125	0.3125	23.34	0.313	9.78	22.6	6.78	54	13.5	2.8	17.1	18.1	9.05	1.62	10.5	45.2	17.6	1.91
8	4	3/8	0.375	0.375	27.48	0.375	7.67	18.3	8.08	61.9	15.5	2.77	19.9	20.6	10.3	1.6	12.2	52.2	20.5	1.89
10	4	-	12	0.109	10.12	0.101	36.6	96.0	2.76	35.0	7.00	3.56	8.72	8.50	4.25	1.75	4.61	22.0	7.79	2.30
10	4	-	11	0.120	11.11	0.112	32.7	86.3	3.05	38.5	7.71	3.55	9.62	9.35	4.67	1.75	5.09	24.3	8.61	2.30
10	4	-	10	0.134	12.37	0.125	29.0	77.0	3.40	42.7	8.54	3.54	10.7	10.3	5.16	1.74	5.64	26.9	9.56	2.30
10	4	-	8	0.160	14.67	0.149	23.8	64.1	4.03	50.2	10.0	3.53	12.6	12.1	6.05	1.73	6.65	31.7	11.3	2.29
10	4	3/16	0.1875	0.1875	17.08	0.188	18.3	50.2	5.03	61.9	12.4	3.51	15.6	14.8	7.4	1.72	8.22	39.2	14	2.28

HSS STRATUSTEEL®–100 SECTION PROPERTIES / SQUARES & RECTANGLES

Nominal Size					Weight per ft	Design Wall Thick.				X-X Axis				Y-Y Axis				Torsional Stiffness Constant	Torsional Shear Constant	Surface Area
Depth	Width	Wall			Weight per ft		t	b/t	h/t	area	lx	Sx	rx	Zx	ly	Sy	ry	zy	j	h	/ft.
in.	in.	in	ga.	in	lb.	in.			ft.2	in.4	in.3	in.	in.3	in.4	in.3	in.	in.3	in.4	in.3	ft.2
10	4	1/4	0.25	0.25	22.42	0.25	13	37	6.59	79.3	15.9	3.47	20.2	18.8	9.4	1.69	10.6	50.4	18.2	2.26
10	4	5/16	0.3125	0.3125	27.59	0.313	9.78	28.9	8.12	95.6	19.1	3.43	24.6	22.4	11.2	1.66	12.8	60.9	22.2	2.24
10	4	3/8	0.375	0.375	37.69	0.375	13	23.7	11.1	145	29	3.61	35.9	65.4	21.8	2.43	25.2	147	40.4	2.56
12	4	-	12	0.109	11.60	0.101	36.6	115.8	3.16	55.3	9.22	4.18	11.7	10.0	5.02	1.78	5.40	27.7	9.37	2.64
12	4	-	11	0.120	12.74	0.112	32.7	104.1	3.50	61.0	10.2	4.17	12.9	11.0	5.52	1.78	5.96	30.6	10.3	2.63
12	4	-	10	0.134	14.19	0.125	29.0	93.0	3.90	67.6	11.3	4.17	14.3	12.2	6.10	1.77	6.61	33.9	11.5	2.63
12	4	-	8	0.160	16.85	0.149	23.8	77.5	4.62	79.6	13.3	4.15	16.9	14.3	7.15	1.76	7.79	39.9	13.6	2.62
12	4	3/16	0.1875	0.1875	19.63	0.188	18.3	60.8	5.78	98.4	16.4	4.13	21	17.5	8.75	1.74	9.66	49.4	16.9	2.62
12	4	1/4	0.25	0.25	25.82	0.25	13	45	7.59	127	21.2	4.09	27.3	22.3	11.2	1.71	12.5	63.6	22	2.6
12	4	5/16	0.3125	0.3125	31.84	0.313	9.78	35.3	9.37	153	25.5	4.04	33.4	26.7	13.4	1.69	15.1	77	26.9	2.58
12	4	3/8	0.375	0.375	37.69	0.375	7.67	29	11.1	178	29.7	4	39	30.5	15.3	1.66	17.6	89	31.4	2.56
4 1/2	4 1/2	-	12	11	0.109	6.41	0.101	41.6	1.75	5.60	2.49	1.79	2.87	5.60	2.49	1.79	2.87	8.71	3.90	1.47
4 1/2	4 1/2	-	11	0.120	7.03	0.112	37.2	37.2	1.93	6.15	2.73	1.78	3.16	6.15	2.73	1.78	3.16	9.60	4.31	1.47
4 1/2	4 1/2	-	10	0.134	7.81	0.125	33.0	33.0	2.15	6.78	3.02	1.78	3.50	6.78	3.02	1.78	3.50	10.6	4.78	1.46
4 1/2	4 1/2	-	8	0.160	9.23	0.149	27.2	27.2	2.54	7.91	3.52	1.77	4.11	7.91	3.52	1.77	4.11	12.5	5.63	1.46
4 1/2	4 1/2	3/16	0.1875	0.1875	10.7	0.188	20.9	20.9	3.15	9.62	4.28	1.75	5.05	9.62	4.28	1.75	5.05	15.4	6.97	1.45
5	5	-	14	0.083	5.49	0.077	61.9	61.9	1.50	6.03	2.41	2.00	2.76	6.03	2.41	2.00	2.76	9.27	3.73	1.64
5	5	-	12	0.109	7.15	0.101	46.5	46.5	1.95	7.76	3.10	1.99	3.57	7.76	3.10	1.99	3.57	12.0	4.84	1.64
5	5	-	11	0.120	7.84	0.112	41.6	41.6	2.16	8.53	3.41	1.99	3.93	8.53	3.41	1.99	3.93	13.2	5.35	1.63
5	5	-	10	0.134	8.72	0.125	37.0	37.0	2.40	9.41	3.77	1.98	4.36	9.41	3.77	1.98	4.36	14.7	5.93	1.63

HSS STRATUSTEEL®–100 SECTION PROPERTIES / SQUARES & RECTANGLES

Nominal Size					Weight per ft	Design Wall Thick.				X-X Axis				Y-Y Axis				Torsional Stiffness Constant	Torsional Shear Constant	Surface Area
Depth	Width	Wall			Weight per ft		t	b/t	h/t	area	lx	Sx	rx	Zx	ly	Sy	ry	zy	j	h	/ft.
in.	in.	in	ga.	in	lb.	in.			ft.2	in.4	in.3	in.	in.3	in.4	in.3	in.	in.3	in.4	in.3	ft.2
5	5	-	8	0.160	10.32	0.149	30.6	30.6	2.83	11.0	4.40	1.97	5.12	11.0	4.40	1.97	5.12	17.3	7.00	1.62
5	5	3/16	0.1875	0.1875	11.97	0.188	23.6	23.6	3.53	13.4	5.36	1.95	6.31	13.4	5.36	1.95	6.31	21.4	8.68	1.61
5	5	1/4	0.25	0.25	15.62	0.25	17	127	4.59	16.9	6.76	1.92	8.07	16.9	6.76	1.92	8.07	27.4	11.2	1.6
5	5	5/16	0.3125	0.3125	19.08	0.313	13	13	5.62	20.1	8.04	1.89	9.71	20.1	8.04	1.89	9.71	33.1	13.6	1.58
5	5	3/8	0.375	0.375	22.37	0.375	10.3	10.3	6.58	22.8	9.12	1.86	11.2	22.8	9.12	1.86	11.2	38.2	15.8	1.56
9	5	-	12	0.109	10.12	0.101	46.5	86.1	2.76	30.9	6.87	3.35	8.29	12.6	5.04	2.14	5.55	28.1	8.80	2.30
9	5	-	11	0.120	11.11	0.112	41.6	77.4	3.05	34.1	7.58	3.34	9.15	13.9	5.55	2.13	6.12	31.0	9.73	2.30
9	5	-	10	0.134	12.37	0.125	37.0	69.0	3.40	37.8	8.39	3.33	10.2	15.4	6.14	2.13	6.79	34.4	10.8	2.30
9	5	-	8	0.160	14.67	0.149	30.6	57.4	4.03	44.4	9.87	3.32	12.0	18.0	7.21	2.12	8.01	40.6	12.8	2.29
9	5	3/16	0.1875	0.1875	17.08	0.188	23.6	44.9	5.03	54.8	12.2	3.3	14.9	22.1	8.84	2.1	9.93	50.4	15.9	2.28
9	5	1/4	0.25	0.25	22.42	0.25	17	33	6.59	70.3	15.6	3.27	19.3	28.2	11.3	2.07	12.8	65.2	20.7	2.26
9	5	5/16	0.3125	0.3125	27.59	0.313	13	25.8	8.12	84.7	18.8	3.23	23.4	33.9	13.6	2.04	15.6	79.3	25.4	2.24
9	5	3/8	0.375	0.375	32.58	0.375	10.3	21	9.58	97.8	21.7	3.2	27.3	38.9	15.6	2.02	18.1	92.2	29.7	2.23
6	6	-	12	0.109	8.64	0.101	56.4	56.4	2.36	13.6	4.53	2.40	5.19	13.6	4.53	2.40	5.19	20.9	7.03	1.97
6	6	-	11	0.120	9.48	0.112	50.6	50.6	2.61	15.0	4.99	2.40	5.73	15.0	4.99	2.40	5.73	23.1	7.76	1.97
6	6	-	10	0.134	10.54	0.125	45.0	45.0	2.90	16.5	5.52	2.39	6.35	16.5	5.52	2.39	6.35	25.7	8.62	1.96
6	6	-	8	0.160	12.49	0.149	37.3	37.3	3.43	19.4	6.47	2.38	7.48	19.4	6.47	2.38	7.48	30.3	10.2	1.96
6	6	3/16	0.1875	0.1875	14.78	0.188	28.9	28.9	4.28	23.8	7.93	2.36	9.26	23.8	7.93	2.36	9.26	37.5	12.7	1.95
6	6	1/4	0.25	0.25	19.02	0.25	21	21	5.59	30.3	10.1	2.33	11.9	30.3	10.1	2.33	11.9	48.5	16.5	1.93
6	6	5/16	0.3125	0.3125	23.34	0.313	16.2	16.2	6.87	36.3	12.1	2.3	14.5	36.3	12.1	2.3	14.5	59	20.1	1.91
6	6	3/8	0.375	0.375	27.48	0.375	13	13	8.08	41.6	13.9	2.27	16.8	41.6	13.9	2.27	16.8	68.5	23.5	1.89

HSS STRATUSTEEL®–100 SECTION PROPERTIES / SQUARES & RECTANGLES

Nominal Size					Weight per ft	Design Wall Thick.				X-X Axis				Y-Y Axis				Torsional Stiffness Constant	Torsional Shear Constant	Surface Area
Depth	Width	Wall			Weight per ft		t	b/t	h/t	area	lx	Sx	rx	Zx	ly	Sy	ry	zy	j	h	/ft.
in.	in.	in	ga.	in	lb.	in.			ft.2	in.4	in.3	in.	in.3	in.4	in.3	in.	in.3	in.4	in.3	ft.2
8	6	-	12	0.109	10.12	0.101	56.4	76.2	2.76	26.5	6.62	3.10	7.75	17.1	5.70	2.49	6.39	32.1	9.41	2.30
8	6	-	11	0.120	11.11	0.112	50.6	68.4	3.05	29.2	7.29	3.09	8.56	18.8	6.28	2.48	7.05	35.4	10.4	2.30
8	6	-	10	0.134	12.37	0.125	45.0	61.0	3.40	32.3	8.08	3.08	9.50	20.9	6.95	2.48	7.82	39.3	11.6	2.30
8	6	-	8	0.160	14.67	0.149	37.3	50.7	4.03	38.0	9.50	3.07	11.2	24.5	8.17	2.47	9.23	46.5	13.7	2.29
8	6	3/16	0.1875	0.1875	17.08	0.188	28.9	39.6	5.03	46.9	11.7	3.05	13.9	30.2	10.1	2.45	11.4	57.7	17	2.28
8	6	1/4	0.25	0.25	22.42	0.25	21	29	6.59	60.1	15	3.02	18	38.6	12.9	2.42	14.8	74.9	22.2	2.26
8	6	5/16	0.3125	0.3125	27.59	0.313	16.2	22.6	8.12	72.5	18.1	2.99	22	46.5	15.5	2.39	18	91.4	27.2	2.24
8	6	3/8	0.375	0.375	32.58	0.375	13	18.3	9.58	83.7	20.9	2.96	25.6	53.5	17.8	2.36	21	107	32	2.23

A500 Square / Rectangle Weight Per Foot

A500 / SQUARES

OD1	OD2	Weight per Foot (Pounds)
OD1	OD2			0.065	0.083	0.095	0.100	0.109	0.120	0.125	0.134	0.188	0.250	0.313	0.375	0.500	0.625	0.750
1	1	0.790	0.976	1.091	1.137	1.218	1.311	1.352
1.25	1.25	1.011	1.258	1.414		1.589	1.719	1.777	1.878
1.5	1.5	1.233	1.540	1.738		1.960	2.218	2.202	2.334	3.042
1.75	1.75		1.823	2.061		2.330	2.536	2.628	2.790
2	2		2.105	2.384	2.498	2.701	2.944	3.053	3.246	4.318	5.407
2.5	2.5		2.670	3.031	3.179	3.443	3.761	3.904	4.158	5.594	7.109
3	3		3.235	3.677		4.185	4.578	4.755	5.070	6.870	8.810	10.575
3.5	3.5		3.800	4.324		4.927	5.394	5.605	5.982	8.146	10.511	12.702
4	4		4.365	4.970		5.669	6.211	6.456	6.894	9.422	12.213	14.829	17.270	21.628
4.5	4.5						7.028	7.307	7.806	10.698	13.698	16.956	19.822	25.031
5	5						7.844	8.157	8.718	11.974	15.615	19.082	22.374	28.434
5.5	5.5						8.661	9.008	9.630	13.250	17.317	21.209	24.926	31.837	38.048
6	6						9.478	9.859	10.542	14.526	19.018	23.336	27.479	35.240	42.301
7	7						11.111	11.560	12.365	17.078	22.421	27.589	32.583	42.045	50.808
8	8									19.630	25.824	31.843	37.687	48.851	59.315
9	9									22.182	29.227	36.096	42.791	55.656	67.822
10	10									24.734	32.629	40.350	47.895	62.462	76.329
12	12									29.838	39.435	48.857	58.104	76.073	93.343
14	14									34.943	46.240	57.364	68.312	89.684	110.357	130.331
		16 GA	14 GA	13 GA		12 GA	11 GA		10 GA

A500 / RECTANGLES

OD1	OD2	Weight per Foot (Pounds)
OD1	OD2			0.083	0.095	0.100	0.109	0.120	0.125	0.124	0.188	0.250	0.313	0.375	0.500	0.625	0.750
1	1.5			1.478	1.589	1.719	1.777
1	2		1.738	1.818	1.960	2.128	2.202
1.5	2	1.823	2.061		2.330	2.536
1.5	2.5			2.498	2.701	2.944	3.053	3.246	4.318
1	3	2.105	2.384		2.701	2.944	3.053
1.5	3	2.388	2.707	2.839	3.072	3.353	3.479	3.702	4.956
2	3	2.670	3.031		3.443	3.761	3.904	4.158	5.594	7.109
1.5	4	2.953	3.354		3.814	4.169	4.329	4.614	6.232
2	3.5	2.953	3.354		3.814	4.169	4.329	4.614	6.232	7.959
2.5	3	2.953	3.354		3.814	4.169	4.329	4.614	6.232	7.959
2	4	3.235	3.677		4.185	4.578	4.755	5.070	6.870	8.810
2.5	3.5	3.235	3.677		4.185	4.578	4.755	5.070	6.870	8.810
2.5	4	3.517	4.000		4.556	4.986	5.180	5.526	7.508	9.661
2	5	3.800	4.324		4.927	5.394	5.605	5.982	8.146	10.511
3	4	3.800	4.324		4.927	5.394	5.605	5.982	8.146	10.511	12.702
2.5	5	4.082	4.647		5.298	5.803	6.031	6.438	8.784	11.362	13.765
3	4.5	4.082	4.674		5.298	5.803	6.031	6.438	8.784	11.362	12.765
2	6	4.365	4.970		5.669	6.211	6.456	6.794	9.422	12.213
3	5	4.365	4.970		5.669	6.211	6.456	6.894	9.422	12.213	14.829
2	7					7.028	7.307	7.806	10.698	13.914
3	6	4.930	5.617		6.410	7.028	7.307	7.806	10.698	13.914	16.956
4	5						7.307
2	8					7.844	8.157	8.718	11.974	15.615
4	6	5.494	6.263		7.152	7.844	8.157	8.718	11.974	15.615	19.082	22.374	28.434
3	8					8.661	9.008	9.630	13.250	17.317	21.209
5	6					8.661	9.008	9.630	13.250	17.317	21.209	24.926	31.837
		14 GA	13 GA		12 GA	11 GA		10 GA

A500 / RECTANGLES

OD1	OD2	Weight per Foot (Pounds)
OD1	OD2			0.083	0.095	0.100	0.109	0.120	0.125	0.134	0.188	0.250	0.313	0.375	0.500	0.625	0.750
2	10					9.478	9.859	10.542	14.526	19.018
4	8					9.478	9.859	10.542	14.526	19.018	23.336	27.479	35.240
5	7					9.478	9.859	10.542	14.526	19.018	23.336	27.479	35.240
3	10					10.294	10.709	11.454	15.454	15.802	20.720	25.463
5	8					10.294	10.709	11.454	15.802	20.720	25.463	30.031	38.642
3.5	10					10.703	11.135	11.909	16.440	21.570	26.526
2	12								17.078	22.421
4	10					11.111	11.560	12.365	17.078	22.421	27.589	32.583	42.045
6	8					11.111	11.560	12.365	17.078	22.421	27.589	32.583	43.045	50.808
3	12					11.928	12.411	13.277	18.354	24.122	29.716
5	10					11.928	12.411	13.277	18.354	24.122	29.716	35.135	45.448	55.062
4	12					12.744	13.262	14.189	19.630	25.824	31.843	37.687	48.851
6	10					12.744	13.262	14.189	19.630	25.824	31.843	37.687	48.851	59.315
7	9					12.744	13.262	14.189	19.630	25.824	31.843	37.687	48.851	59.315
4	14									29.227	36.096	42.791	55.656
6	12								22.182	29.227	36.096	42.791	55.656	67.822
8	10								22.182	29.227	36.096	42.791	55.656	67.822
4	16									32.629	40.350	47.895	62.462
6	14									32.629	40.350	47.895	62.462	76.329
8	12								24.734	32.629	40.350	47.895	62.462	76.329
10	12									36.032	44.603	52.999	69.267	84.836
6	18									39.435	48.857	58.104	76.073	93.343
8	16									39.435	48.857	58.105	76.073	93.343
10	14									39.435	48.857	58.104	76.073	93.343
8	20											68.312	89.684	110.357	130.331
12	16											68.312	89.684	110.357	130.331
		14 GA	13 GA		12 GA	11 GA		10 GA

HSS Section Properties/ Rectangles

Document Text:

This publication presents tables of dimensions and section properties for rectangular Hollow Structural Sections (HSS) produced by Bull Moose Tube Company.

The dimensions, including nominal width, nominal depth, nominal diameter and nominal wall thickness are subject to the permissible variations stipulated in ASTM A500 “Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes.”

With today’s manufacturing methods, HSS are produced to more precision than in the past. The strip used to produce HSS is now ordered to thicknesses with tighter tolerances. As a result, ERW HSS manufactured to ASTM A500 will often have a wall thickness close to the Specification allowable value.

In a change from past practice, section property data is now based upon the design wall thickness. The design wall thickness, t, for ERW HSS is less than the specified nominal wall thickness. The design wall

thickness for each HSS size is included in the tabulated data.

The section property data based upon the design wall thickness, t, results in variations in the published area data that do not exceed 3.50% of the data based upon the minimum permissible wall thickness stipulated in ASTM A500. This is consistent with the similar section property data published for hot rolled structural shapes and the manufacturing tolerances associated with those products. The section property data for rectangular ERW HSS are based upon outside corner radii equal to 2.0 times the design wall thickness.

These tables contain all HSS sizes produced by Bull Moose Tube Company as well as current capability to produce sizes. Check with our sales department for current availability.

The more universal terms “Hollow Structural Section” and “HSS” are used in this publication to designate rectangular structural steel tubing. These terms replace “structural tubing” and “pipe,” which had

been used previously.

The information presented in this publication has been prepared in accordance with recognized engineering principles and is for general information only. While it is believed to be accurate, this information should not be used or relied upon for any specific application without competent professional examination and verification of its accuracy, suitability, and applicability by a licensed professional engineer, designer, or architect. The publication of the material contained herein is not intended as a representation or warranty on the part of Bull Moose Tube Company, that this information is suitable for any general or particular use or of freedom from infringement of any patent or patents. Anyone making use of this information assumes all liability arising from such use.

Caution must be exercised when relying upon other specifications and codes developed by other bodies and incorporated by reference herein since such material may be modified or amended from time

to time subsequent to the publishing of this edition. Bull Moose Tube Company bears no responsibility for such material other than to refer to it and incorporate it by reference at the time of the initial publication of this edition.

HSS SECTION PROPERTIES / RECTANGLES

Nominal Size			Weight per ft	Design Wall Thickness	b/t	h/t	area	X-X Axis Properties				Y-Y Axis Properties				Torsion Span		Surface Area Per Foot
Depth H	Width B	Wall	Weight per ft						l	s	r	z	l	s	r	z	j	c
in.	in.	in	lb	in			in.²	in.⁴	in.³	in.	in.³	in.⁴	in.³	in.	in.³	in.⁴	in.³	ft.²
18	6	5/8	93.3	0.581	7.32	28.0	25.7	923	103	5.99	135	158	52.6	2.48	60.5	462	109	3.83
18	6	1/2	76.1	0.465	9.90	35.7	20.9	770	85.6	6.07	111	134	44.6	2.53	50.3	387	89.9	3.87
18	6	3/8	58.1	0.349	14.2	48.6	15.9	602	66.9	6.15	86.2	106	35.4	2.58	39.3	302	69.4	3.90
18	6	5/16	48.9	0.291	17.6	58.9	13.4	512	56.9	6.18	72.9	91.1	30.4	2.61	33.4	257	58.7	3.92
18	6	1/4	39.4	0.233	22.8	74.7	10.8	418	46.4	6.22	59.2	75.0	25.0	2.63	27.2	210	47.6	3.93
18	4	1/2	69.3	0.465	5.60	35.7	19.0	627	69.7	5.74	95.1	52.8	26.4	1.66	30.4	172	57.3	3.53
18	4	3/8	53.0	0.349	8.47	48.6	14.5	493	54.8	5.82	73.9	42.9	21.4	1.72	24.0	138	44.8	3.57
18	4	5/16	44.6	0.291	10.8	58.9	12.2	421	46.8	5.87	62.6	37.2	18.6	1.74	20.6	119	38.1	3.58
18	4	1/4	36.0	0.233	14.2	74.4	9.87	345	38.3	5.91	51.0	30.9	15.5	1.77	16.9	97.8	31.1	3.60
16	8	5.8	93.3	0.581	10.8	24.5	25.7	815	102	5.63	128	274	68.5	3.27	78.7	681	132	3.83
16	8	1/2	76.1	0.465	14.2	31.4	20.9	679	84.9	5.70	106	230	57.6	3.32	65.2	563	108	3.87
16	8	3/8	58.1	0.349	19.9	42.9	15.9	530	66.3	5.77	81.8	181	45.3	3.37	50.6	436	83.4	3.90
16	8	5/16	48.9	0.291	24.5	52.1	13.4	451	56.3	5.80	69.2	155	38.7	3.40	42.9	369	70.3	3.92
16	8	1/4	39.4	0.233	31.4	65.8	10.8	368	46.0	5.83	56.2	127	31.7	3.42	34.9	300	56.9	3.93
16	4	1/2	62.5	0.465	5.60	31.4	17.2	455	56.9	5.15	77.0	46.9	23.5	1.65	27.1	150	50.7	3.20
16	4	3/8	47.9	0.349	8.47	42.9	13.2	359	44.9	5.23	60.0	38.2	19.1	1.70	21.5	120	39.7	3.23
16	4	5/16	40.3	0.291	10.8	52.1	11.1	307	38.4	5.27	51.0	33.2	16.6	1.73	18.4	103	33.8	3.25
16	4	1/4	32.6	0.233	14.2	65.8	8.94	252	31.5	5.31	41.6	27.6	13.8	1.76	15.1	85.0	27.6	3.27
14	10	5/8	93.3	0.581	14.2	21.1	25.7	687	98.2	5.17	119	407	81.5	3.98	94.6	832	146	3.83
14	10	1/2	76.1	0.465	18.5	27.1	20.9	572	81.8	5.23	98.5	341	68.1	4.04	78.1	685	120	3.87
14	10	3/8	58.1	0.349	25.7	37.1	15.9	447	63.8	5.29	76.1	267	53.3	4.09	60.5	528	91.7	3.90
14	10	5/16	48.9	0.291	31.4	45.2	13.4	380	54.2	5.32	64.4	227	45.4	4.12	51.2	446	77.3	3.92
14	10	1/4	39.4	0.233	40.0	57.2	10.8	310	44.2	5.35	52.3	185	37.1	4.14	41.6	361	62.5	3.93

HSS SECTION PROPERTIES / RECTANGLES

Nominal Size			Weight per ft	Design Wall Thickness	b/t	h/t	area	X-X Axis Properties				Y-Y Axis Properties				Torsion Span		Surface Area Per Foot
Depth H	Width B	Wall	Weight per ft						l	s	r	z	l	s	r	z	j	c
in.	in.	in	lb	in			in.²	in.⁴	in.³	in.	in.³	in.⁴	in.³	in.	in.³	in.⁴	in.³	ft.²
14	6	5/8	76.3	0.581	7.32	21.1	21.0	478	68.2	4.77	88.2	124	41.2	2.42	47.9	334	83.8	3.17
14	6	1/2	62.5	0.465	9.90	27.1	17.2	402	57.4	4.84	73.3	105	35.1	2.48	40.0	279	69.3	3.20
14	6	3/8	47.9	0.349	14.2	37.1	13.2	317	45.2	4.91	57.1	84.0	28.0	2.53	31.4	219	53.6	3.23
14	6	5/16	40.3	0.291	17.6	45.2	11.1	270	38.6	4.94	48.5	72.2	24.1	2.55	26.7	186	45.4	3.25
14	6	1/4	32.6	0.233	22.8	57.2	8.94	222	31.7	4.98	39.5	59.5	19.8	2.58	21.9	152	36.9	3.27
14	4	1/2	55.7	0.465	5.60	27.1	15.3	317	45.3	4.55	60.7	41.1	20.5	1.64	23.8	127	44.1	2.87
14	4	3/8	42.8	0.349	8.47	37.1	11.8	252	36.0	4.63	47.6	33.6	16.8	1.69	18.9	102	34.6	2.90
14	4	5/16	36.1	0.291	10.8	45.2	9.91	216	30.8	4.67	40.5	29.2	14.6	1.72	16.3	87.6	29.5	2.92
14	4	1/4	29.2	0.233	14.2	57.2	8.01	177	25.4	4.71	33.1	24.3	12.2	1.74	13.4	72.3	24.1	2.93
12	10	5/8	84.8	0.581	14.2	17.6	23.4	472	78.7	4.50	94.9	356	71.1	3.90	83.6	661	124	3.50
12	10	1/2	69.3	0.465	18.5	22.8	19.0	395	65.9	4.56	78.5	298	59.6	3.96	69.3	545	102	3.53
12	10	3/8	53.0	0.349	25.7	31.4	14.5	310	51.6	4.61	60.9	234	46.8	4.01	53.8	421	78.3	3.57
12	10	5/16	44.6	0.291	31.4	38.3	12.2	264	43.9	4.64	51.6	200	39.9	4.04	45.6	356	66.0	3.58
12	10	1/4	36.0	0.233	40.0	48.6	9.87	216	35.9	4.67	41.9	163	32.7	4.07	37.1	289	53.4	3.60
12	8	5/8	76.3	0.581	10.8	17.6	21.0	396	66.1	4.34	81.6	210	52.5	3.16	61.4	454	97.7	3.17
12	8	1/2	62.5	0.465	14.2	22.8	17.2	333	55.5	4.40	67.8	177	44.4	3.21	51.2	377	89.4	3.20
12	8	3/8	47.9	0.349	19.9	31.4	13.2	262	43.7	4.47	52.8	140	35.1	3.27	39.9	292	62.0	3.23
12	8	5/16	40.3	0.291	24.5	38.3	11.1	224	37.3	4.50	44.8	120	30.0	3.29	33.9	248	52.4	3.25
12g	8	1/4	32/6	0.233	31.4	48.6	8.94	183	30.6	4.53	36.5	98.6	24.6	3.32	27.7	202	42.5	3.27
12	8	3/16	24.7	0.174	42.9	65.8	6.78	141	23.5	4.56	27.8	75.9	19.0	3.35	21.1	154	32.3	3.28

HSS SECTION PROPERTIES / RECTANGLES

Nominal Size			Weight per ft	Design Wall Thickness	b/t	h/t	area	X-X Axis Properties				Y-Y Axis Properties				Torsion Span		Surface Area Per Foot
Depth H	Width B	Wall	Weight per ft						l	s	r	z	l	s	r	z	j	c
in.	in.	in	lb	in			in.²	in.⁴	in.³	in.	in.³	in.⁴	in.³	in.	in.³	in.⁴	in.³	ft.²
12	6	5/8	67.8	0.581	7.32	17.6	18.7	321	53.4	4.14	68.3	106	35.5	2.39	41.6	271	71.2	2.83
12	6	1/2	55.7	0.465	9.90	22.8	15.3	271	45.2	4.21	57.0	91.0	30.3	2.44	34.9	227	59.0	2.87
12	6	3/8	42.8	0.349	14.2	31.4	11.8	215	35.8	4.28	44.6	72.9	24.3	2.49	27.5	178	45.8	2.90
12	6	5/16	36.1	0.291	17.6	38.3	9.91	184	30.7	4.31	38.0	62.7	20.9	2.52	23.4	152	38.8	2.92
12	6	1/4	29.2	0.233	22.8	48.6	8.01	151	25.2	4.34	31.0	51.8	17.3	2,54	19.2	124	31.5	2.93
12	6	3/16	22.2	0.174	31.4	65.8	6.08	116	19.4	4.38	23.7	40.1	13.4	2.57	14.7	94.8	24.0	2.95
12	4	1/2	48.9	0.465	5.60	22.8	13.5	209	34.9	3.94	46.3	35.2	17.6	1.62	20.5	105	37.5	2.53
12	4	3/8	37.7	0.349	8.47	31.4	10.4	168	27.9	4.02	36.5	28.9	14.4	1.67	16.4	84.0	29.5	2.57
12	4	5/16	31.8	0.291	10.8	38.3	8.74	144	24.0	4.06	31.2	25.1	12.6	1.70	14.1	72.3	25.2	2.58
12	4	1/4	25.8	0.233	14.2	48.6	7.08	119	19.8	4.10	25.5	21.0	10.5	1.72	11.6	59.7	20.6	2.60
12	4	3/16	19.6	0.174	19.9	65.8	5.38	91.9	15.3	4.13	19.6	16.4	8.22	1.75	8.99	46.1	15.8	2.62
12	3-1/2	5/16	30.8	0.291	9.04	38.3	8.45	134	22.4	3.98	29.5	18.6	10.6	1.48	12.0	55.9	21.7	2.50
12	3-1/2	1/4	25.0	0.233	12.1	48.6	6.85	111	18.5	4.02	24.2	15.6	8.91	1.51	9.89	46.4	17.8	2.52
12	3-1/2	3/16	19.0	0.174	17.1	65.8	5.21	85.9	14.3	4.06	18.6	12.3	7.01	1.53	7.66	36.0	13.7	2.53
12	3	5/16	29.7	0.291	7.32	38.3	8.16	124	20.7	3.90	27.8	13.1	8.72	1.27	9.88	41.2	18.3	2.42
12	3	1/4	24.1	0.233	9.90	48.6	6.62	103	17.1	3.94	22.8	11.0	7.36	1.29	8.21	34.4	15.1	2.43
12	3	3/16	18.4	0.174	14.2	65.8	5.03	79.8	13.3	3.98	17.5	8.74	5.82	1.32	6.38	26.9	11.6	2.45
12	2	1/4	22.4	0.233	5.60	48.6	6.15	86.7	14.5	3.75	20.0	4.39	4.39	0.84	5.01	15.0	9.62	2.27
12	2	3/16	17.1	0.174	8.47	65.8	4.68	67.6	11.3	3.80	15.5	3.55	3.55	0.87	3.95	12.0	7.51	2.28

HSS Section Properties/ Squares

Document Text:

This publication presents tables of dimensions and section properties for square Hollow Structural Sections (HSS) produced by Bull Moose Tube Company.

thickness for each HSS size is included in the tabulated data.

The section property data based upon the design wall thickness, t, results in variations in the published area data that do not exceed 3.50% of the data based upon the minimum permissible wall thickness stipulated in ASTM A500. This is consistent with the similar section property data published for hot rolled structural shapes and the manufacturing tolerances associated with those products. The section property data for square ERW HSS are based upon outside corner radii equal to 2.0 times the design wall thickness.

These tables contain all HSS sizes produced by Bull Moose Tube Company as well as current capability to produce sizes. Check with our sales department for current availability. The more universal terms “Hollow Structural Section” and “HSS” are used in this publication to designate square structural steel tubing.

These terms replace “structural tubing” and “pipe,” which had been used previously.

Caution must be exercised when relying upon other specifications and codes developed by other bodies and incorporated by reference herein since such material may be modified or amended from time

HSS SECTION PROPERTIES / SQUARES

Nominal Size			Weight per ft	Design Wall Thickness	b/t	h/t	area	Properties				Torsion Span		Surface Area Per Foot
Depth H	Width B	Wall	Weight per ft						l	s	r	z	j	c
in.	in.	in	lb	in			in.²	in.⁴	in.³	in.	in.³	in.⁴	in.³	ft.²
12	12	5/8	93.34	0.581	17.6	17.6	25.7	548	91.4	4.62	108	886	151	3.83
12	12	1/2	76.07	0.465	22.8	22.8	20.9	457	76.2	4.68	89.2	728	123	3.87
12	12	3/8	58.10	0.349	31.4	31.4	15.9	357	59.5	4.73	69.0	561	94.5	3.90
12	12	5/16	48.86	0.291	38.3	38.2	13.4	304	50.6	4.76	58.4	473	79.6	3.92
12	12	1/4	39.43	0.233	48.6	48.6	10.8	248	41.3	4.79	47.4	383	64.3	3.93
10	10	5/8	76.33	0.581	14.2	14.2	21.0	304	60.8	3.80	72.7	4.98	102	3.17
10	10	1/2	62.46	0.465	18.5	18.5	17.2	256	51.2	3.86	60.4	412	84.2	3.20
10	10	3/8	47.90	0.349	25.7	25.7	13.2	202	40.3	3.92	47.0	319	64.8	3.23
10	10	5/16	40.35	0.291	31.4	31.4	11.1	172	34.4	3.94	39.9	270	54.7	3.25
10	10	1/4	32.63	0.233	40.0	40.0	8.94	141	28.2	3.97	32.5	220	44.3	3.27
10	10	3/16	24.73	0.174	54.3	54/3	6.78	108	21.7	4.00	24.8	167	33.6	3.28
8	8	5/8	59.32	0.581	10.8	10.8	16.4	146	36.5	2.99	44.2	244	63.2	2.50
8	8	1/2	48.85	0.465	14.2	14.2	13.5	125	31.1	3.04	37.1	204	52.4	2.53
8	8	3/8	37.69	0.349	19.9	19.9	10.4	99.5	24.9	3.10	29.2	160	40.7	2.57
8	8	5/16	32.84	0.291	24.5	24.5	8.74	85.5	21.4	3.13	25.0	136	34.5	2.58
8	8	1/4	25.82	0.233	31.4	31.4	7.08	70.5	17.6	3.16	20.4	111	28.0	2.60
8	8	3/16	19.63	0.174	42.9	42.9	5.38	54.5	13.6	3.18	15.7	84.6	21.3	2.62
8	8	0.134	14.19	0.125	61.2	61.2	3.89	40.0	9.99	3.21	11.4	61.4	15.5	2.63
8	8	1/8	13.26	0.116	65.8	65.8	3.63	37.4	9.36	3.21	10.7	57.5	14.4	2.63
7	7	5/8	50.81	0.581	9.04	9.04	14.1	93.2	26.6	2.58	32.6	158	47.1	2.17
7	7	1/2	42.05	0.465	12.1	12.1	11.6	80.4	23.0	2.63	27.6	133	39.3	2.20
7	7	3/8	32.58	0.349	17.1	17.1	8.97	64.9	18.5	2.69	21.9	105	30.7	2.23
7	7	5/16	27.59	0.291	21.1	21.1	7.58	56.0	16.0	2.72	18.8	89.6	26.1	2.25
7	7	1/4	22.42	0.233	27.1	27.1	6.15	46.4	13.3	2.75	15.4	73.4	21.2	2.27
7	7	3/16	17.08	0.174	37.1	37.1	4.68	36.0	10.3	2.77	11.9	56.2	16.2	2.28
7	7	0.134	12.37	0.125	53.2	53.2	3.39	26.5	7.58	2.8	8.69	40.9	11.8	2.30
7	7	1/8	11.56	0.116	57.2	57.2	3.17	24.9	7.10	2.80	8.13	38.3	11.0	2.30

HSS SECTION PROPERTIES / SQUARES

Nominal Size			Weight per ft	Design Wall Thickness	b/t	h/t	area	Properties				Torsion Span		Surface Area Per Foot
Depth H	Width B	Wall	Weight per ft						l	s	r	z	j	c
in.	in.	in	lb	in			in.²	in.⁴	in.³	in.	in.³	in.⁴	in.³	ft.²
6	6	5/8	42.30	0.581	7.32	7.32	11.7	55.0	18.3	2.17	22.7	95.0	33.4	1.83
6	6	1/2	35.24	0.465	9.90	9.90	9.74	48.2	16.1	2.22	19.5	81.1	28.1	1.87
6	6	3/8	27.48	0.349	14.2	14.2	7.57	39.4	13.1	2.28	15.6	64.6	22.1	1.90
6	6	5/16	23.34	0.291	17.6	17.6	6.42	34.3	11.4	2.31	13.5	55.4	18.6	1.92
6	6	1/4	19.02	0.233	22.8	22.8	5.22	28.6	9.52	2.34	11.1	45.5	15.4	1.93
6	6	3/16	14.53	0.174	31.4	31.4	3.99	22.3	7.44	2.37	8.62	35.0	11.8	1.95
6	6	0.134	10.54	0.125	45.1	45.1	2.89	16.5	5.50	2.39	6.32	25.6	8.60	1.96
6	6	1/8	9.86	0.116	48.6	48.6	2.70	15.5	5.16	2.39	5.93	23.9	8.04	1.97
5-1/2	5-1/2	3/8	24.93	0.349	12.8	12.8	6.87	29.7	10.8	2.08	12.9	49.0	18.3	1.73
5-1/2	5-1/2	5/16	21.21	0.291	15.9	15.9	5.84	25.9	9.41	2.11	11.1	42.1	15.7	1.75
5-1/2	5-1/2	1/4	17.32	0.233	20.7	20.7	4.76	21.7	7.88	2.13	9.25	34.7	12.9	1.77
5-1/2	5-1/2	3/16	13.25	0.174	28.5	28.5	3.64	17.0	6.18	2.16	7.18	26.8	9.87	1.78
5-1/2	5-1/2	0.134	9.63	0.125	41.1	41.1	2.64	12.6	4.59	2.19	5.28	19.6	7.19	1.80
5-1/2	5-1/2	1/8	9.01	0.116	44.3	44.3	2.47	11.8	4.31	2.19	4.95	18.4	6.73	1.80
5	5	1/2	28.43	0.465	7.75	7.75	7.88	25.9	10.4	1.81	12.7	44.6	18.7	1.53
5	5	3/8	22.37	0.349	11.3	11.3	6.18	21.7	8.66	1.87	10.4	36.1	14.9	1.57
5	5	5/16	19.08	0.291	14.2	14.2	5.26	19.0	7.60	1.90	9.04	31.1	12.8	1.58
5	5	1/4	15.62	0.233	18.5	18.5	4.29	16.0	6.40	1.93	7.53	25.8	10.5	1.60
5	5	3/16	11.97	0.174	25.7	25.7	3.29	12.6	5.04	1.96	5.87	20.0	8.10	1.62
5	5	0.134	8.72	0.125	37.1	37.1	2.39	9.39	3.76	1.98	4.33	14.6	5.92	1.63
5	5	1/8	8.16	0.116	40.0	40.0	2.24	8.82	3.53	1.99	4.06	13.7	5.54	1.63
4-1/2	4-1/2	5/16	16.96	0.291	12.5	12.5	4.68	13.5	5.98	1.70	7.15	22.3	10.2	1.42
4-1/2	4-1/2	1/4	13.91	0.233	16.4	16.4	3.83	11.4	5.07	1.73	5.99	18.5	8.42	1.43
4-1/2	4-1/2	3/16	10.70	0.174	22.8	22.8	2.94	9.04	4.02	1.75	4.70	14.4	6.50	1.45
4-1/2	4-1/2	0.134	7.81	0.125	33.1	33.1	2.14	6.77	3.01	1.78	3.48	10.6	4.76	1.46
4-1/2	4-1/2	1/8	7.31	0.116	35.7	35.7	2.00	6.36	2.83	1.78	3.27	9.94	4.46	1.47

HSS SECTION PROPERTIES / SQUARES

Nominal Size			Weight per ft	Design Wall Thickness	b/t	h/t	area	Properties				Torsion Span		Surface Area Per Foot
Depth H	Width B	Wall	Weight per ft						l	s	r	z	j	c
in.	in.	in	lb	in			in.²	in.⁴	in.³	in.	in.³	in.⁴	in.³	ft.²
4	4	1/2	21.63	0.465	5.60	5.60	6.02	11.9	5.93	1.40	7.36	21.0	11.2	1.20
4	4	3/8	17.27	0.349	8.47	8.47	4.78	10.2	5.12	1.46	6.22	17.5	9.13	1.23
4	4	5/16	14.83	0.291	10.8	10.8	4.09	9.12	4.56	1.49	5.48	15.3	7.90	1.25
4	4	1/4	12.21	0.233	14.2	14.2	3.36	7.79	3.89	1.52	4.62	12.8	6.55	1.27
4	4	3/16	9.42	0.174	19.9	19.9	2.59	6.22	3.11	1.55	3.65	10.0	5.08	1.28
4	4	0.134	6.89	0.125	29.1	1.89	4.68	4.68	2.34	1.57	2.72	7.38	3.74	1.30
4	4	1/8	6.46	0.116	31.4	31.4	1.77	4.41	2.20	1.58	2.55	6.92	3.50	1.30
3-1/2gray	3-1/2	5/16	12.70	0291	9.04	9.04	3.51	5.83	3.33	1.29	4.02	9.90	5.89	1.08
3-1/2	3-1/2	1/4	10.51	0.233	12.1	12.1	2.90	5.03	2.87	1.32	3.43	8.33	4.92	1.10
3-1/2	3-1/2	3/16	8.15	0.174	17.1	17.1	2.24	4.06	2.32	1.35	2.73	6.57	3.84	1.12
3-1/2	3-1/2	0.134	5.98	0.125	25.1	25.1	1.64	3.08	1.76	1.37	2.05	4.88	2.83	1.13
3-1/2	3-1/2	1/8	5.61	0.116	27.1	27.1	1.54	2.90	1.66	1.37	1.93	4.58	2.66	1.13
3	3	1/4	8.81	0.233	9.90	9.90	2.43	3.01	2.01	1.11	2.41	5.07	3.51	0.93
3	3	3/16	6.87	0.174	14.2	14.2	1.89	2.46	1.64	1.14	1.95	4.04	2.76	0.95
3	3	0.134	5.07	0.125	21.1	21.1	1.39	1.89	1.26	1.17	1.48	3.03	2.05	0.96
3	3	1/8	4.75	0.116	22.8	22.8	1.31	1.79	1.19	1.17	1.39	2.84	1.93	0.97
2-1/2	2-1/2	1/4	7.11	0.233	7.75	7.75	1.97	1.62	1.30	0.91	1.57	2.79	2.34	0.77
2-1/2	2-1/2	3/16	5.59	0.174	11.3	11.3	1.54	1.35	1.08	0.94	1.29	2.25	1.87	0.78
2-1/2	2-1/2	0.134	4.16	0.125	17.1	17.1	1.14	1.06	0.84	0.96	1.00	1.71	1.40	0.80
2-1/2	2-1/2	1/8	3.90	0.116	18.5	18.5	1.07	1.00	0.80	0.96	0.94	1.61	1.32	0.80
2	2	1/4	5.41	0.233	5.60	5.60	1.50	0.74	0.74	0.70	0.90	1.31	1.40	0.60
2	2	3/16	4.32	0.174	8.47	8.47	1.20	0.64	0.64	0.73	0.77	1.09	1.14	0.62
2	2	0.134	3.25	0.125	13.0	13.0	0.89	0.51	0.51	0.76	0.61	0.84	0.87	0.63
2	2	1/8	3.05	0.116	14.2	14.2	0.84	0.49	0.49	0.76	0.58	0.80	0.82	0.63
2	2	0.100	2.50	0.093	18.5	18.5	0.69	0.41	0.41	0.77	0.48	0.66	0.67	0.64

HSS SECTION PROPERTIES / SQUARES

Nominal Size			Weight per ft	Design Wall Thickness	b/t	h/t	area	Properties				Torsion Span		Surface Area Per Foot
Depth H	Width B	Wall	Weight per ft						l	s	r	z	j	c
in.	in.	in	lb	in			in.²	in.⁴	in.³	in.	in.³	in.⁴	in.³	ft.²
1-1/2	1-1/2	0.134	2.33	0.125	9.04	9.04	0.65	0.20	0.26	0.55	0.31	0.33	0.46	0.46
1-1/2	1-1/2	1/8	2.20	0.116	9.90	9.90	0.61	0.19	0.25	0.56	0.30	0.32	0.44	0.46
1-1/2	1-1/2	0.100	1.82	0.093	13.1	13.1	0.50	0.16	0.22	0.57	0.26	0.27	0.37	0.47
1-1/4	1-1/4	0.134	0.88	0.125	7.03	7.03	0.52	0.11	0.17	0.45	0.20	0.18	0.31	0.38
1-1/4	1-1/4	1/8	1.78	0.116	7.75	7.75	0.49	0.10	0.16	0.45	0.20	0.17	0.29	0.38
1-1/4	1-1/4	0.100	1.48	0.093	10.4	10.4	0.41	0.09	0.14	0.47	0.17	0.15	0.25	0.39
1	1	0.134	1.42	0.125	5.02	5.02	0.40	0.05	0.10	0.35	0.11	0.08	0.18	0.30
1	1	1/8	1.35	0.116	5.60	5.60	0.38	0.05	0.09	0.35	0.11	0.08	0.18	0.30
1	1	0.100	1.14	0.93	7.75	7.75	0.32	0.04	0.08	0.35	0.10	0.07	0.15	0.31

A500 Pipe Chart

Provides outer diameters, pipe wall thicknesses, and weight per foot for our mechanical steel tube sizes ranging from ½ to 18.

Document Text:

Structural Pipe Chart

Provides outer diameters, pipe wall thicknesses, and weight per foot for our mechanical steel tube sizes ranging from ½ to 18.

Blue = wall thickness in inches

Black = Weight per foot in pounds

Schedule
Pipe Size	OD (Inches)	10	20	30	40	STD	60	80	XH	100	120
1/2	0.840	0.083			0.109	0.109
1/2	0.840	0.671			0.851	0.851
3/4	1.050	0.083			0.113	0.113
3/4	1.050	0.857			1.131	1.131
1	1.315	0.109			0.133	0.133
1	1.315	1.404			1.679	1.679
1 1/4	1.660	0.109			0.140	0.140
1 1/4	1.660	1.806			2.272	2.272
1 1/2	1.900	0.109			0.145	0.145
1 1/2	1.900	2.638			2.718	2.718
2	2.375	0.109			0.154	0.154
2	2.375	2.638			3.653	3.653
2 1/2	2.875	0.120			0.203	0.203
2 1/2	2.875	3.531			5.793	5.793
3	3.500	0.120			0.216	0.216
3	3.500	4.332			7.576	7.576
3 1/2	4.000	0.120			0.226	0.226
3 1/2	4.000	4.973			9.109	9.109

Schedule
Pipe Size	OD (Inches)	10	20	30	40	STD	60	80	XH	100	120
4	4.500	0.120			0.237	0.237
4	4.500	5.613			10.790	10.790
5	5.563	0.134			0.258	0.258		0.375	0.375		0.500
5	5.563	7.770			14.631	14.631		20.797	20.797		27.062
6	6.625	0.134			0.280	0.280		0.432	0.432		0.562
6	6.625	9.289			18.992	18.992		28.600	28.600		36.425
8	8.625		0.250	0.277	0.322	0.322	0.406	0.500	0.500	0.593	0.718
8	8.625		22.382	24.720	28.580	28.580	35.672	43.428	43.428	50.916	60.690
10	10.750		0.250	0.307	0.365	0.365	0.500	0.593	0.500	0.718
10	10.750		28.061	34.272	40.521	40.521	54.786	64.387	54.786	77.000
12	12.750		0.250	0.330	0.406	0.375	0.562	0.687	0.500
12	12.750		33.406	43.814	53.575	49.608	73.223	88.591	65.476
14	14.000	0.250	0.312	0.375	0.437	0.375	0.593	0.750	0.500
14	14.000	36.747	45.653	54.619	63.360	54.619	84.989	106.232	72.158
16	16.000	0.250	0.312	0.375	0.500	0.375	0.656		0.500
16	16.000	42.092	52.324	62.637	82.848	62.637	107.602		82.848
18		0.250	0.312	0.437	0.562	0.375	0.750		0.500
18		47.437	58.994	82.046	104.764	70.654	138.302		93.538

Structural Canadian Charts

Document Text:

Structural Canadian Charts

Bull Moose Tube is a leading producer of Mechanical Tube and Pipe and Hollow Structural Sections.

Bull Moose Tube produces As-Welded Mechanical tubing to meet ASTM specification A 513. Mechanical tubing is available in hot-rolled, hotrolled pickled & oiled, cold-rolled matte and cold-rolled plating quality finishes, and coated steels, including Galvanized and Galvalume.

In addition, high-strength, low-alloy (HSLA) grades are available.

The enclosed size charts are representative of Bull Moose Tube Limited’s capabilities. Other sizes and gauges are within Bull Moose Tube’s capabilities and we welcome inquiries. Certain sizes are produced only at certain locations. For inquiries or additional information or inquiries, please contact your sales representative today at (800) 882-4666 in Canada, from the US call (800) 325-4467 or (636) 537-2600, or from Mexico call (636) 537-2600.

The weight per foot contained in the size charts are based on the theoretical weight per foot calculations generally used in the industry.

Actual weight may vary based on actual steel gauge and dimensions in accordance with ASTM specifications.

Bull Moose Tube produces Hollow Structural Sections (HSS) to meet ASTM specification A 500. In addition, Bull Moose Tube can roll 80 ksi steel and for certain sizes and gauges, 100 ksi and 110 ksi steel. A full range of HSS sizes and gauges are also available from our Elkhart, Indiana Facility where structural tubing is produced using the Direct Form Method. This method allows Bull Moose Tube to produce deep rectangles rarely manufactured in 2 x 4 the industry as well as hard metrics.

STRUCTURAL CANADIAN CHARTS

Mechanical Size Chart - Rectangles
Size	20 GA 0.035	19 GA 0.042	18 GA 0.049	17 GA 0.058	16 GA 0.065	15 GA 0.072	14 GA 0.083	13 GA 0.095	12 GA 0.109	11 GA 0.120	10 GA 0.134
1/2 x 3/4	0.281	0.333	0.384	0.447	0.495	0.541
1/2 x 1	0.340	0.404	0.467	0.546	0.606	0.664
1/2 x 1-1/4	0.400	0.476	0.550	0.644	0.716	0.786
1/2 x 1-1/2	0.459	0.547	0.634	0.743	0.827	0.909
5/8 x 1	0.370	0.440	0.509	0.595	0.661	0.725
5/8 x 1-1/8	0.400	0.476	0.550	0.644	0.716	0.786
5/8 x 1-1/4	0.430	0.512	0.592	0.694	0.771	0.847
3/4 x 1	0.400	0.476	0.550	0.644	0.716	0.786
3/4 x 1-1/4	0.459	0.547	0.634	0.734	0.827	0.909
3/4 x 1-1/2	0.519	0.619	0.717	0.842	0.937	1.031	1.176
3/4 x 1-3/4	0.578	0.690	0.800	0.940	1.048	1.153	1.317
3/4 x 2	0.638	0.761	0.884	1.039	1.158	1.276	1.458
1 x 1-1/4	0.519	0.619	0.717	0.842	0.937	1.031	1.176	1.331	1.506
1 x 1-1/2	0.578	0.690	0.800	0.940	1.048	1.153	1.317	1.492	1.691	1.844
1 x 1-3/4			0.884	1.039	1.158	1.276	1.458	1.877	2.048
1 x 2			0.967	1.137	1.269	1.398	1.600	2.062	2.252
1 x 2-1/2			1.134	1.335	1.490	1.643	1.882	2.138	2.433
1 x 3			1.300	1.532	1.711	1.888	2.164	2.461	2.803
1.181 x 2.362			1.148	1.352	1.509	1.664	1.906	2.166	2.464	2.695	2.984
1-1/4 x 1-3/4			0.967	1.137	1.269	1.398	1.600	1.815	2.062	2.252
1-1/4 x 3					1.379	1.521	1.741	1.977	2.247	2.456
1-1/4 x 3-1/8					1.832	2.023	2.319	2.639	3.007	3.293
1-3/8 x 2-3/4					1.766	1.949	2.234	2.542	2.896	3.170
1-1/2 x 2			1.134	1.335	1.490	1.643	1.882	2.138	2.433	2.600
1-1/2 x 2-1/2			1.300	1.532	1.711	1.888	2.164	2.461	2.803	3.068
1-1/2 x 3			1.467	1.729	1.932	2.133	2.446	2.784	3.174	3.476
1.575 x 1.969			1.148	1.352	1.509	1.665	1.907	2.167	2.465	2.696
1.575 x 2.362			1.279	1.507	1.683	1.857	2.128	2.421	2.757	3.017
1-3/4 x 2-1/2					1.821	2.012	2.305	2.623	2.989	3.272
2 x 2-1/2					1.932	2.133	2.446	2.784	3.174	3.476
2 x 3					2.153	2.377	2.728	3.107	3.544	3.884	4.312
2 x 4					2.595	2.867	3.293	3.753	4.286	4.700	5.223

Structural HSS Shapes
Size	0.100	0.125	0.134
1 x 1	1.140	1.350	1.420
1 - 1/4 x 1-1/4	1.480	1.780	1.880
1 x 1-1/2	1.480	1.780	1.880
1 - 1/2 x 1-1/2	1.820	2.200	2.330
1 x 2	1.820	2.200	2.330
1-3/4 x 1-3/4	2.160	2.630
1-1/2 x 2	2.160	2.620	2.780
2 x 2	2.500	3.050	3.240
1 x 3	2.500	3.050	3.240
1-1/2 x 2-1/2	2.500	3.050	3.240
2-1/8 x 2-1/8	2.670	3.260	3.470
1-1/2 x 3	2.840	3.480	3.700
2-1/2 x 2-1/2	3.180	3.900	4.150
2 x 3	3.180	3.900	4.150
2-1/2 x 3	3.520	4.320	4.610
3 x 3	3.860	4.750	5.070
2-1/2 x 3-1/2	3.860	4.750	5.070
2x4	3.860	4.750	5.070

Structural HSS Shapes
O.D.	0.100	0.125	0.134	0.150	0.180
1.050	1.015	1.235	1.311
1.315	1.298	1.589	1.690
1.660	1.666	2.049	2.184
1.690	1.698	2.089	2.227
1.900	1.920	2.370	2.527	2.804
2.375	2.430	3.004	3.207	3.564
2.875	2.960	3.670	3.920	4.360
3.000	3.097	3.838	4.100	4.566	5.420

Mechanical Size Chart - Rounds
O.D.	Fraction	20 GA 0.035	19 GA 0.042	18 GA 0.049	17 GA 0.058	16 GA 0.065	15 GA 0.072	14 GA 0.083	13 GA 0.095	12 GA 0.109	11 GA 0.120	10 GA 0.134	9 GA 0.148	8 GA 0.165	7 GA 0.180	SCH 40
0.625	5/8	0.221	0.262	0.301	0.351	0.389	0.425	0.480
0.706		0.251	0.298	0.344	0.401	0.445
0.750	3/4	0.267	0.318	0.367	0.429	0.476	0.521	0.591	0.665
0.787		0.281	0.334	0.386	0.452	0.501	0.550	0.624
0.812	13/16	0.290	0.345	0.399	0.467	0.519	0.569	0.646
0.840		0.301	0.358	0.414	0.484	0.538	0.591	0.671	0.756	0.851
0.875	7/8	0.314	0.374	0.432	0.506	0.562	0.617	0.702	0.791
0.922		0.332	0.395	0.457	0.535	0.595	0.654	0.744	0.839	0.946
0.955		0.344	0.410	0.474	0.556	0.618	0.679	0.773	0.873	0.985	1.070
0.995		0.359	0.427	0.495	0.580	0.646	0.710	0.808	0.913	1.031	1.121
1.000	1	0.361	0.430	0.498	0.584	0.649	0.714	0.813	0.918	1.037	1.128
1.050		0.379	0.452	0.524	0.614	0.684	0.752	0.857	0.969	1.095	1.192
1.063		0.384	0.458	0.531	0.623	0.693	0.762	0.869	0.982	1.111	1.209
1.125	1-1/8	0.407	0.486	0.563	0.661	0.736	0.810	0.924	1.045	1.183	1.288	1.418
1.163		0.422	0.503	0.583	0.684	0.762	0.839	0.957	1.084	1.227	1.337	1.473
1.250	1-1/4	0.454	0.542	0.629	0.738	0.823	0.906	1.034	1.172	1.328	1.448	1.597	1.742
1.312	1-5/16	0.477	0.570	0.661	0.777	0.866	0.954	1.089	1.235	1.400	1.528	1.686	1.840
1.375	1-3/8	0.501	0.598	0.694	0.816	0.909	1.002	1.145	1.299	1.474	1.608	1.776	1.939
1.500	1-1/2	0.548	0.654	0.759	0.893	0.996	1.098	1.256	1.426	1.619	1.769	1.955	2.137
1.562	1-9/16	0.571	0.682	0.792	0.932	1.039	1.146	1.311	1.488	1.691	1.848	2.044	2.235
1.625	1-5/8	0.594	0.710	0.825	0.971	1.083	1.194	1.367	1.552	1.765	1.929	2.134	2.335
1.660		0.607	0.726	0.843	0.992	1.107	1.221	1.398	1.588	1.806	1.974	2.184	2.390			2.373
1.690		0.619	0.739	0.859	1.011	1.128	1.244	1.425	1.618	1.840	2.012	2.227	2.437
1.750	1-3/4	0.641	0.766	0.890	1.048	1.170	1.290	1.478	1.679	1.910	2.089	2.313	2.532
1.875	1-7/8	0.688	0.822	0.956	1.126	1.257	1.386	1.589	1.806	2.056	2.249	2.492	2.730
1.900		0.697	0.833	0.969	1.141	1.274	1.406	1.611	1.831	2.085	2.281	2.527	2.769			2.718
2.000	2	0.735	0.878	1.021	1.203	1.343	1.483	1.699	1.933	2.201	2.409	2.670	2.927
2.125	2-1/8			1.086	1.280	1.430	1.579	1.810	2.060	2.437	2.570	2.849	3.125
2.250	2-1/4			1.152	1.358	1.517	1.675	1.921	2.186	2.492	2.730	3.028	3.323
2.375	2-3/8			1.217	1.435	1.604	1.771	2.032	2.313	2.638	2.890	3.207	3.520
2.500	2-1/2			1.253	1.513	1.690	1.867	2.143	2.440	2.783	3.050	3.386	3.718
2.750	2-3/4			1.413	1.668	1.864	2.059	2.364	2.694	3.074	3.371	3.744	4.113
2.875	2-7/8			1.479	1.745	1.951	2.155	2.475	2.821	3.220	3.531	3.923
3.000	3			1.544	1.822	2.037	2.252	2.586	2.947	3.365	3.691	4.102	4.508
3.500	3-1/2					2.385	2.636	3.029	3.455	3.948	4.332	4.817	5.298
4.000	4					2.732	3.020	3.472	3.962	4.530	4.973	5.533	6.089	6.758	7.344

Mechanical Size Chart - Squares
Size	20 GA 0.035	19 GA 0.042	18 GA 0.049	17 GA 0.058	16 GA 0.065	15 GA 0.065	14 GA 0.083	13 GA 0.095	12 GA 0.109	11 GA 0.120	10 GA 0.134	9 GA 0.148	8 GA 0.165	7 GA 0.180
1/2 x 1/2			0.301	0.349	0.385
5/8 x 5/8	0.281	0.333	0.384	0.447	0.495
3/4 x 3/4	0.340	0.404	0.467	0.546	0.606	0.664	0.753
7/8 x 7/8	0.400	0.476	0.550	0.644	0.716	0.786	0.894	1.008	1.136
1 x 1	0.459	0.547	0.634	0.743	0.827	0.909	1.035	1.169	1.321	1.436
1-1/8 x 1-1/8	0.519	0.169	0.717	0.842	0.937	1.031	1.176	1.331	1.506	1.640
1-1/4 x 1-1/4			0.800	0.940	1.048	1.153	1.317	1.492	1.691	1.844	2.034
1-1/2 x 1-1/2			0.967	1.137	1.269	1.398	1.600	1.815	2.062	2.252
1-3/4 x 1-3/4			1.134	1.335	1.490	1.643	1.882	2.138	2.433	2.660	2.945
2 x 2			1.300	1.532	1.711	1.888	2.164	2.461	2.803	3.068	3.401
2-1/8 x 2-1/8			1.383	1.630	1.821	2.010	2.305	2.623	2.989	3.272	3.628
2.170 x 2.170			1.413	1.666	1.861	2.054	2.356	2.681	3.055	3.346
2-3/8 x 2-3/8			1.550	1.828	2.042	2.255	2.587	2.9436	3.359	3.680	4.084
2-1/2 x 2-1/2			1.633	1.926	2.153	2.377	2.728	3.107	3.544	3.884	4.312
2.820 x 2.820			1.847	2.179	2.435	2.691	3.090	3.521	4.019	4.406	4.895	5.378
3 x 3			1.967	2.321	2.595	2.867	3.293	3.753	4.286	4.700	5.223	5.741

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Mechanical Tube

Mechanical Tube Sales Brochure

Document Text:

To Build Stronger Products. Start with Stronger Steel: Bull Moose Mechanical Tube.

Strength and endurance are what you get with Bull Moose mechanical steel tubes. Our steel tubes offer the industry’s best strength-to-weight ratios—which enables you to build cost-effective products that can endure the toughest applications.

Whether you’re working in commercial, construction, or consumer markets, our products help your products to be stronger.

Bull Moose Advantages:

Tube that meets A513 or custom grades
Weathering grade
Special shapes available
Widest variety of custom sizes and lengths—including metric sizes
Pickle & Oil and Dry Pickle & Oil options

Other Benefits/Services:

Leading availability and fastest delivery through seven North American plants
Special packaging
Special rolling options
Broad range of finishing services
Extensive engineering and product development capabilities

Leading the Herd

Founded in 1962, Bull Moose Tube has been delivering products of enduring quality for more than half a century.

Our mechanical stock includes squares ranging from .5 to 3 inches, rectangles from 1x1.5 to 2x3 — in a broad assortment of gauges. For projects requiring heavy-duty structural pipe, Bull Moose provides diameters of .5 to 4 inches, in all standard schedules.

With eight North American manufacturing and warehouse facilities, Bull Moose has the products you need within easy reach.

You need strength and reliability. You need availability. You need Bull Moose Tube.

Locations around North America Delivering Best-in-Class Products

Stock Bundle Sizes

Document Text:

Stock Bundle Sizes / Typically Tube Lengths Over 80"

(Text Chart must be viewed on Desktop)

Squares

Size	Gauges	Burlington, ON	Chicago Heights, IL	Gerald, MO	Masury, OH	Trenton, GA
0.500	All	0	200	200	0	200
0.750	All	155	155	155	0	155
1.000	All	100	100	100	100	100
1.250	All	100	100	100	100	100
1.500	All	81	81	81	81	81
1.750	All	64	64	64	64	64
2.000	All	49	49	49	49	49
2.170	All	49	49	49	49	0
2.250	All	49	49	49	49	0
2.500	All	49	49	49	49	49
3.000	All	36	0	0	36	16

Rectangles

Size	Gauges	Burlington, ON	Chicago Heights, IL	Gerald, MO	Masury, OH	Trenton, GA
1 x 1.5	All	100	100	100	50	0
1 x 2	All	98	98	98	98	98
1 x 3	All	48	50	50	50	0
1.5 x 2	All	63	48	63	63	0
1.5 x 2.5	All	48	48	48	48	48
1.5 x 3	All	49	49	49	49	0
2 x 3	All	49	49	49	49	49

Structural Pipe

Size	Gauges	Burlington, ON	Casa Granda, AZ	Chicago Heights, IL	Gerald, MO	Masury, OH	Trenton, GA
0.500	All	169	0	0	127	0	0
0.750	All	91	0	127	127	0	127
1.000	All	102	61	61	61	61	61
1.250	All	61	61	61

Documentation

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Hollow Structural Sections (HSS)

Mechanical Tube

To Build Stronger Products. Start with Stronger Steel: Bull Moose Mechanical Tube.

Bull Moose Advantages:

Other Benefits/Services:

Leading the Herd

Squares

Rectangles

Structural Pipe