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80Cr20Si2Ni不锈钢

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产品编号 80cr20si2ni不锈钢
产品说明

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介绍


牌号:80Cr20Si2Ni 标准:GB/T 1221-1992
●特性及适用范围: 用作耐磨性为主的吸气、排气阀、阀座等。
●交货状态:一般以热处理规范状态交货,其热处理种类在合同中注明;未注明者,按不热处理状态交货。

化学成分


碳 C :0.75~0.85
硅 Si:1.75~2.25
锰 Mn:0.20~0.60
硫 S :≤0.030
磷 P :≤0.030
铬 Cr:19.00~20.50
镍 Ni:1.15~1.65

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。


产品参数

80cr20si2ni不锈钢规格:圆棒规格直径6mm-350mm,板材规格厚0.1mm-300mm均有现货

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