SNC836 SNC836 SNC836 SNC836 SNC836 SNC836 SNC836 SNC836 SNC836 SNC836 SNC836 SNC836SNC836 SNC836 SNC836 SNC836 SNC836 SNC836 SNC836
执行标准: JIS G4053-2003
●化学成份:
碳 C :0.32~0.40
硅 Si:0.15~0.35
锰 Mn:0.35~0.65
硫 S :允许残余含量≤0.030
磷 P :允许残余含量≤0.030
铬 Cr:0.60~1.00
镍 Ni:3.00~3.50
铜 Cu:允许残余含量≤0.030
●力学性能:
抗拉强度 σb (MPa):≥1130(115)
屈服强度 σs (MPa):≥980(100)
伸长率 δ5 (%):≥10
断面收缩率 ψ (%):≥50
冲击功 Akv (J):≥47
冲击韧性值 αkv (J/cm2):≥59(6)
硬度 :≤269HB
试样尺寸:试样毛坯尺寸为25mm
●热处理规范及金相组织:
热处理规范:淬火820℃,油冷;回火500℃,水冷、油冷。
SNC836 SNC836 SNC836 SNC836 SNC836 SNC836 SNC836 SNC836 SNC836 SNC836 SNC836 SNC836SNC836 SNC836 SNC836 SNC836 SNC836 SNC836 SNC836 |
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