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公开(公告)号：US11608550B2
公开(公告)日：2023-03-21
申请号：US17460308
申请日：2021-08-30
发明人： Qingchun Zhou , Weiming Xu , Jincai Gu , Jianhui Ge , Bowei Zhao , Junliang Wu , Sheng Ma
IPC分类号： C22C38/30 , C22C38/22 , C22C38/26 , C22C38/28 , C22C38/02 , C22C38/04 , C22C38/00 , C21D9/00 , C21D8/00
摘要： The present application relates to the technical field of die steel, and particularly discloses a hot working die steel with high thermal strength and high toughness and a manufacturing process thereof. The hot working die steel with high thermal strength and high toughness includes the following components in percentage by mass: 0.20-0.40% of carbon, 0.05-0.20% of silicon, 0.30-0.60% of manganese, 1.00-4.00% of chromium, 0.50-1.50% of molybdenum, 0.20-0.60% of vanadium, 0.60-1.00% of cobalt, 0.06-0.16% of titanium, 0.03-0.08% of yttrium, 0.03-0.08% of niobium, 0.005-0.012% of phosphorus, 0.003-0.008% of sulfur, and a balance of iron and inevitable impurities.
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公开(公告)号：US20220372601A1
公开(公告)日：2022-11-24
申请号：US17460308
申请日：2021-08-30
发明人： Qingchun Zhou , Weiming Xu , Jincai Gu , Jianhui Ge , Bowei Zhao , Junliang Wu , Sheng Ma
IPC分类号： C22C38/30 , C22C38/22 , C22C38/26 , C22C38/28 , C22C38/02 , C22C38/04 , C22C38/00 , C21D9/00 , C21D8/00
摘要： The present application relates to the technical field of die steel, and particularly discloses a hot working die steel with high thermal strength and high toughness and a manufacturing process thereof. The hot working die steel with high thermal strength and high toughness includes the following components in percentage by mass: 0.20-0.40% of carbon, 0.05-0.20% of silicon, 0.30-0.60% of manganese, 1.00-4.00% of chromium, 0.50-1.50% of molybdenum, 0.20-0.60% of vanadium, 0.60-1.00% of cobalt, 0.06-0.16% of titanium, 0.03-0.08% of yttrium, 0.03-0.08% of niobium, 0.005-0.012% of phosphorus, 0.003-0.008% of sulfur, and a balance of iron and inevitable impurities.
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