Steel HSS | Atlas Tube
For Steel HSS Get Answers from Atlas Tube.. Depend on Atlas Tube for steel hollow structural sections (HSS) and answers to all your design and shipment questions. We manufacture the largest size range with the best availability in the industry for all products: ASTM A500, A1085, A513 and A252; CSA Class C and Class H; jumbo sizes; and Epox Z Kote® powderprimed tubing.