.301不锈钢牌号1Cr17Ni7 ;301不锈钢化学成分% C:0.15 ,Si :1.0 ,Mn :2.0 ,Cr :16.018.0 ,Ni :6.0-8.0,S :0.03 ,P :0.045 304不锈钢牌号:0Cr18Ni9(0Cr19Ni9);304不锈钢化学成分% C:0.08 ,Si :1.0 ,Mn :2.0 ,Cr :18.020.0 ,Ni :8.010.0,S :0.03 ,P :0.045304L不锈钢牌号:00Cr19Ni10(0Cr18Ni10);304L不锈钢化学成分% C:0.03 ,Si :1.0 ,Mn :2.0 Cr :18.020.0 ,Ni :9.013.0,S :0.03 ,P :0.045321不锈钢牌号:1Cr18Ni9Ti;321不锈钢化学成分% C:0.08 ,Si1.0,Mn :2.0 ,Cr :17.019.0 ,Ni :9.0-13,S :0.03 ,P :0.045,Ti5 302不锈钢牌号:1Cr18Ni9;3