... machine-made industry,spin,shippin... Shape: Square Certification: ISO StandardASTM A276,A484,A564,A581 ... more information. Best Stainless can supply stainless steel square bar in grades 304/304L, SS 316/316L, ... years as a leading supplier of stainless steel square bar and we can provide the same ... great service for your stainless square bar needs. Ask a sales representative for more ...