... 4.material grade:ASTM 304 stianless steel wire rodSize:0.5-20mmStandard:AISI 304,304L,309,316,316L,321,310S etc ... composition Gradechemical composition %CCrNiMoSiMnPS2011Cr17Mn6Ni5N≤0.1516.00-18.003.50-5.50-≤1.005.50-7.50≤0.060≤0.0303040Cr18Ni9 ... .00-15.002.00-3.00≤1.00≤2.0 5.5-9.5mm steel wire rod