40Cr10Si2Mo不锈钢圆钢

40cr10si2mo材质现货规格40cr10si2mo询价40cr10si2mo旧牌号4cr10si2mo/s48140，40cr10si2mo日标suh3，40cr10si2mo德标1.4731/x40crsimo10-2
40cr10si2mo内燃机气阀钢化学成分：
碳c：0.35~0.45
硅si：1.90~2.60
铬cr：9.00~10.50
锰mn：≤0.70
磷p：≤0.035
硫s：≤0.03
钼mo：3.00~5.00
镍ni：≤0.60