New jumbo HSS Sizes up to 22” square. Walls up to 1” thick. Rolled right here in the U.S.A. Coming September 2021. Learn more. Back to the Atlas Observer Fabricator Associations By Jelani Rucker on May 1, 2014 Atlas Tube supports the following organizations: Steel Fabricators of New England Mid-Atlantic Steel Fabrication Association Virginia Carolinas Structural Steel Fabricators Association