Bull Moose Tube's Hollow Structural Sections are being specified as the material of choice for an ever-increasing array of products. From agricultural equipment to building construction and outdoor lighting, Bull Moose Tube's products perform! The manufacturing process used at Bull Moose Tube to produce HSS is unique in the industry. In the conventional tube forming process,a strip of steel is formed into a round and welded first. The round is then cold worked again to shape it into a square or rectangular profile.

At Bull Moose Tube the square or rectangle is directly formed from a strip of steel and then welded. Because of this process, no cold working of the flat sides is performed.

The amount of residual stress in the Bull Moose Tube product is minimal. Conventional processes rely on cold working to increase the physical properties of yield and tensile strength allowing the tubular section to meet the minimum requirements of ASTM A 500. At Bull Moose Tube, our steel strip is purchased to meet the ASTM guidelines without having to hope that cold working will allow the product to conform to ASTM A 500 strength requirements. Our steel chemistry requirements are more stringent than ASTM minimum ensuring our product quality.

This process allows for a number of benefits for our customers. Direct form allows for fewer roll stations leading to faster changeovers from one size to another that results in more frequent rolling cycles. Bull Moose Tube is known for having the fastest cycle times on the most sizes in the tubing industry. In fact we schedule to roll most of our popular sizes every 3 weeks. As a result of direct forming, Bull Moose Tube HSS has tighter tolerances on twist, straightness, concavity and convexity. Another benefit of our unique process is minimal tooling time and costs for special and Hard Metric sizes.

Direct forming allows Bull Moose Tube to provide deep rectangles rarely manufactured in the industry in such sizes as 2" X 12" and 3 ½" X 12", while all the time maintaining the flatness of sides and dimensional tolerance other mills have difficulty meeting. Bull Moose Tube is one of the few tube manufacturers to roll 5/8 wall material; and we do so with shorter lead times. As well, Bull Moose Tube can roll 100 ksi steel for the demanding engineering projects of today.