Astm5120具有高强度和淬透性,15Cr钢韧性差;它具有良好的焊接性,焊接后一般不需要热处理。Astm5120适用于芯部强度要求高、表面磨损大、尺寸大、形状复杂、载荷低的渗碳零件,如齿轮、齿轮轴、凸轮、活塞销、蜗杆等,也可用作工作速度高、冲击载荷中等的淬火和回火零件。工艺规范正火规范:温度920-950ºC,硬度156-179hbs。冷压粗胚软化处理规范:温度700~720ºC,保温时间8~15h,温度降至≤ 550~600ºC,炉内冷却速度为50~100ºC/h。处理前硬度≤ 179hbs,软化后硬度≤ 140血红蛋白。
合金棒
合金棒
合金棒












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