As you were browsing something about your browser made us think you were a bot. There are a few reasons this might happen:

CSA G40.21 HSS are cold-formed, welded carbon steel structural tubing products produced to the Canadian steel standard. We offer Class C and Class H in accordance with this specification.

Looking for the best HSS on the market? You’ve come to the right place. Our high-quality, American-made HSS steel can help you build beautiful, cost-effective structures that are efficient, sustainable and resilient.

Excellent strength-to-weight ratios mean you’ll need less steel to do the job, making it a cost-comparative option to wide-flange sections. Use our Axial Load Calculator to see what your project needs.

Not only is steel the strongest building material on Earth, it’s also the greenest. Atlas Tube structural steel includes steel made in electric arc furnaces that emit 75% less CO2 than traditional steelmaking. Each new HSS can contain up to 70% recycled content and is 100% recyclable.

Class H HSS are also cold-formed and welded, but then heat-treated in a furnace to stress relieve the product. Class H can be designed to a higher axial capacity in accordance with CSA S16, which may lead to weight savings in column applications.

ASTM A500 and A1085 HSS are cold-formed, welded carbon steel structural tubing products that offer excellent compression and torsional resistance.

The largest HSS in North American can help you build bigger, wider and taller than ever before. See how Jumbo HSS are changing the structural steel game.

ASTM A500, Grade C is the standard specification used in North America and is readily available from North American HSS producers as well as steel service centers.

Meet Shuriken — the Better Bolted Connection that’s about to change your building game. Shuriken is a simple yet revolutionary way to field bolt HSS, eliminating the amount of field welds needed, increasing in-shop prefabrication, and saving you time, hassle and money. Go ahead — field bolt HSS like never before!

ASTM A1085 HSS are higher performing and well suited for applications that demand more, such as seismic or bridge applications.