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发明申请
WO2020108123A1 高氮高铬塑料模具钢及其冶炼和热处理方法 审中-公开

高氮高铬塑料模具钢及其冶炼和热处理方法
摘要：
一种高氮高铬塑料模具钢及其冶炼和热处理方法，按重量百分比计，其化学成分为：C 0.25～0.35％、Si 0.45～0.8％、Mn 0.4～0.7％、Cr 16.5～17.5％、Ni 0.1～0.3％、Mo 0.1～0.5％、N 0.06～0.10％，其余为Fe及不可避免的杂质元素；热处理采用了球化退火和等温淬火-回火；该塑料模具钢具有良好的耐蚀性能。
摘要（英）：

High-nitrogen and high-chromium plastic die steel, and a smelting method and a thermal processing method therefor. The high-nitrogen and high-chromium plastic die steel comprises the chemical components in percentage by weight: 0.25-0.35% of C, 0.45-0.8% of Si, 0.4-0.7% of Mn, 16.5-17.5% of Cr, 0.1-0.3% of Ni, 0.1-0.5% of Mo, 0.06-0.10% of N, and the balance being Fe and inevitable impurity elements. The thermal processing comprises spheroidizing annealing and isothermal quenching-tempering. The plastic die steel has good corrosion resistance.

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