ASTM A1112

ASTM Specification
A135 / A795
A252
A500 / CSA G40 / EN10219
A513
A847
A1085
A1112

Bull Moose Tube manufacturing steel pipeIntroduced in 2018, the ASTM A1112/A1112M-18 standards cover new high-strength HSS alloys, including Grades 70, 80, 90, 100 & 110 HSS.

This is the spec that pertains to the high-strength, low-weight Stratusteel HSS line from Bull Moose.

A1112 tube provides new options for welded, riveted, or bolted construction of bridges, buildings, and similar structural applications. And Stratusteel, with its 110 ksi yield strengths, provides new options for other innovative, weight-saving uses such as:

  • Trailers
  • Construction cranes
  • Industrial racking
  • Launch pad scaffolding
  • Communication towers
  • Military vehicles
  • Hook & ladder trucks

CLICK HERE to read an interview with Mark Abernathy about A1112 tube.

Relevant Documentation

Document Text

Stratusteel 

110 KSI Steel Tubing

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-Picked Surface)

Contact us to explore the advantages Stratusteel can bring to your product line!

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 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 0.637 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 0.473 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 0.473 0473 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 0.89 125 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 1.49 303 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 0.1875 0.1875 6.87 0.188 13 13 2.02 2.61 1.74 1.14 2.1 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 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 10.5 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 2.31 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 3.08 1.47
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 17.1 37.3 2.54 11.8 3.92 2.15 4.87 4.00 2.67 1.26 3.01 9.69 4.96 1.46
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 1.45
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 0.120 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 1.80
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 1.79
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 1.78
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 2.14
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 6.34 4.28 1.31 4.71 18.7 8.36 2.12

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 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 13.58 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 3.49 907 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 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 0.149 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 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 – 14 0.083 4.93 0.077 55.4 55.4 1.35 4.37 1.94 1.80 2.23 4.37 1.94 1.80 2.23 6.73 3.01 1.48
4 1/2 4 1/2 – 12 0.109 6.41 0.101 41.6 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 27.2 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 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 5.16 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 12 12 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 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 12.34 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

 

Document Text

Stratusteel: Next Generation HSS

We’re taking High-Strength, Lightweight Steel to New Heights

Stratusteel® from Bull Moose is revolutionary hollow structural steel tubing that’s two times harder than conventional steel… achieves strength ratings in excess of 100 and 110 KSI…at a weight that’s as much as 35% below other steel.

This robust technology enables cranes to reach higher, trailers to carry more weight, rescue ladders to extend farther — all without compromises in strength.

About Stratusteel

STRONGER: Stratusteel achieves strength ratings from 100 to 110 KSI, compared the 50 to 80 KSI ratings of conventional steel. Our product is stronger which means you can load more or extend further. 

LIGHTER: Living up to its stratus-cloud namesake, Stratusteel is as much as 35% lighter than standard steel products. 

TOUGHER: Stratusteel is 2x harder than standard steel as measured by the Rockwell hardness scale. As a result, products made of Stratusteel have an impact-resistant toughness that enables them to take a beating and look newer, longer. This hardness also enables extendable products (such as booms and fire truck ladders) to extend farther without sway or bounce.

CREATES VALUE FOR YOU IN SIGNIFICANT WAYS: For truckers, less weight = more freight. For booms, cranes, and ladders, it’s stronger so you can extend longer. For every application, it performs as some of the toughest, most durable steel ever, prolonging the life and value of heavy-duty equipment. 

CURRENT APPLICATIONS: Military vehicles, launch pad scaffolding, ladders, booms, agricultural equipment, heavy haul trailers.

DELIVERING PRODUCTS  AND SERVICES OF  EXCEPTIONAL STRENGTH

One key contributor to our quality is our unique manufacturing methodology. Bull Moose forms tube directly from steel coil, eliminating a “mother tube” or prior-stage process. This approach enables us to start with only the highest-grade steel, form sharper corners, craft the straightest tube, and make the most consistent welds.  

Bull Moose is respected for achievements in innovation. Our engineering and operations teams have devised processes that allow us to create custom shapes and sizes, including a full range of metric sizes. Other unique products include tube that will not rust in outdoor applications, and our 110 KSI product—the strongest, lightest tube in the market. 

From our collaborative engineering to our sales and customer service, we work to maintain straightforward and transparent business practices that earn the confidence of our customers.

PRODUCT LINES INCLUDE: 

  • Mechanical Square Tube 
  • Mechanical Pipe 
  • Hollow Structural Section (including our ultra   high-strength, lightweight Stratusteel™ product) • Sprinkler Pipe (including Schedule 10,   Schedule 40, Reddi Pipe™, Eddy Pipe™)

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