80Cr20Si2Ni价格
80Cr20Si2Ni对应牌号
80Cr20Si2Ni物理性能
80Cr20Si2Ni力学性能
80Cr20Si2Ni化学成分
80Cr20Si2Ni化学成分 格林钢材80Cr20Si2Ni力学性能
80Cr20Si2Ni不锈钢铭 格林钢材80Cr20Si2Ni对应牌号
80Cr20Si2Ni抗拉强度80Cr20Si2Ni屈服强度80Cr20Si2Ni伸长率80Cr20Si2Ni执行标准
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力学性能
抗拉强度 σb (MPa):淬火回火,≥885
条件屈服强度 σ0.2 (MPa):淬火回火,≥685
伸长率 δ5 (%):淬火回火,≥10
断面收缩率 ψ (%):淬火回火,≥15
冲击功 Akv (J):淬火回火,≥8
硬度 :退火,≤321HB;淬火回火,≥262HB
热处理工艺
热处理规范:1)退火,800~900℃缓冷或约720℃空冷;2)淬火,1030~1080℃油冷;3)回火,100~800℃快冷。 金相组织:组织特征为马氏体型。