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渗碳 规格表
Carburizing KS Specifications — 3个尺寸
KS D 3867
KSCarburizing
3 sizes| Material | Condition | Pre Hardness | Post Hardness | Case Depth | Application |
|---|---|---|---|---|---|
| SCM420 | 930°C 渗碳 → 830°C → 150°C | HB 150~180 | HRC 58~62 | 0.5~1.5mm | 齿轮··轴 |
| SCM415 | 920°C 渗碳 → 820°C → 150°C | HB 140~170 | HRC 58~62 | 0.4~1.2mm | 小型 齿轮·销 |
| SNCM420 | 930°C 渗碳 → 830°C → 150°C | HB 170~200 | HRC 58~63 | 0.8~2.0mm | 大型 齿轮· 轴 |
渗碳(Carburizing)将低碳钢(SCM415/SCM420/SNCM420)表面渗入碳形成高碳层(0.8~1.0% C), 随后淬火只硬化表面。心部保持原低碳钢的韧性, 表面硬度HRC 58~62、硬化深度0.5~1.5mm, 适用于齿轮齿面·花键·凸轮等同时需要耐磨与耐冲击的零件。气体渗碳(930°C × 数~数十小时)为主流, 真空渗碳在减少变形和品质稳定性方面有优势。