... 3.Standard:GB,ASTM,JIS.AISI,DIN,EN 304 stainless steel bar 304 stainless steel bar specification1. Grade: AISI304, 304L,316,316L,321 ... ,410,420 ect. 2.Starndard: ASTM,JIS,GB,EN,AISI3.Surface: Bright,Polished ... 13mm ~ 100 x 50mm5mm ~ 80mm20*20-100*100mm 304 stainless steel bar chemical composition The chemical position C≤SiMnP≤S≤CrNiMo ...