... 310S and so on 2) Processing :cold drawn,hot rolled. 304 Stainless Steel Bar1) Outside Diameter: from 1mm to 300mm2) Main Material: ... Grade : 321, 304, 304L, 316, 316L, 317, 317,310S3) Main Standards: ASTMA312,ASTMA213 ... of our best attention all the time. type stainless steel bar size1mm to 240mmgrade321, 304, 304L, 316, 316L, 317, 317L,310s,904L ...