... Regular Specification: OD: 4mm-426mm Thickness: 1mm~12mm Stainless steel square seamless pipe Main Grade:201, 201B, 201H, 301, 302, 303, 304 ... Finish: Pickled, Blasting, Polish (200-800#)AISI 304 Stainless Steel Square Bar 1. Composition (%): C:0.08max, Si:1.00max, Mn ...