71Si7弹簧钢板耐磨高淬透性71Si7弹簧钢带任意分条热处理硬料软料71Si7弹簧钢板国钛71Si7圆钢|71Si7弹簧钢牌号：71Si7（化学成分%：）国钛71Si7圆棒|71Si7弹簧钢碳C：0.26～0.35国钛71Si7宝钢|71Si7弹簧钢硅Si：≤1.00国钛71Si7板材|71Si7弹簧钢锰Mn：≤1.00国钛71Si7钢材|71Si7弹簧钢硫S：≤0.030国钛71Si7材料|71Si7弹簧钢磷P：≤0.035国钛71Si7批发|71Si7弹簧钢铬Cr：12.00～14.00国钛71Si7价格|71Si7弹簧钢镍Ni：允许含有≤0.60国钛71Si7批发|71Si7弹簧钢其它余量2.淬火回火后的力学性能:抗拉强度:1470-1670MPa屈服强度:1080MPa伸长率%:5面收缩率%:20冲击功J:-3.热加工与热处理:热加工温度：1050-850℃热成型温度：900-830℃退火温度:640-680℃正火温度:870-900℃淬火温度:830-860℃(油)回火温度:430-550℃退火硬度≤HBW235.详细说明：52CrMoV4(1.7701)淬火回火后的力学性能:抗拉强度:1370-1670MPa屈服强度:1175MPa伸长率%:6面收缩率%:-冲击功J:-)