... Round Bar 1) Grade : 321, 304, 304L, 316, 316L, 317, 317,310S 2) Processing :cold/hot drawn,cold rolled ... 240mm2) Main Material: Grade : 321, 304, 304L, 316, 316L, 317, 317,310S3) Main Standards: ASTMA312,ASTMA213,GB/T14975-2002 ... bar size3 mm to 240mmgrade321, 304, 304L, 316, 316L, 317, 317L,310s,904L etc.standard/ASTM/ASME/DIN/ ... ,SGS,and third part inspection. ASTM 316 /316L Stainless Steel Round Bar