Stainless Steel Round Tube for furniture,handle,machine making ect Thickness:0 ... ASTM-A554 From the nature, To the excellence. NameStainless Steel Round Tube / PipeStandardASTM A312, A249,A269 and A270,A554Material Grade201 ... bench,furniture,etcTestSquash test, extended test, water pressure test, crystal rot test, heat treatment, NDT Chemical Composition of Material MaterialComposition201202304316L430C ...