SKH57是日本JIS标准高速钢钢号, 日立金属HITACHI 牌号XVC5, 具有耐磨耗,耐烧结,高耐压性高速钢.多用于冷锻模,拉伸模,切削等.

供货状态及硬度：  软性退火  硬度≤285HB

SKH57、SKH57、SKH57、SKH57、SKH57化学成分(质量分数,%)： C 1.25  Si0.25    Mn 0.35   Cr 4.15   W 10.00 P≤0.025   S≤0.010 Mo3.50  V3.45  Co 10.00

SKH57、SKH57、SKH57、SKH57、SKH57
退火规范 :   退火温度820～880℃,保温时间1～3H,炉冷

淬火、 回火规范：淬火温度1230～1250℃油冷,回火温度550～580℃空冷,硬度≥

相组织：回火马氏体。
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