- 专利标题: STEEL SHEET FOR HOT STAMPING AND METHOD OF MANUFACTURING THE SAME
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申请号: US18079529申请日: 2022-12-12
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公开(公告)号: US20230111843A1公开(公告)日: 2023-04-13
- 发明人: Byung Gil Yoo , Je Woo Soo Kim , Hyeong Hyeop Do , Seong Kyung Han
- 申请人: Hyundai Steel Company
- 申请人地址: KR Incheon
- 专利权人: Hyundai Steel Company
- 当前专利权人: Hyundai Steel Company
- 当前专利权人地址: KR Incheon
- 优先权: KR10-2021-0072973 20210604
- 主分类号: C22C38/54
- IPC分类号: C22C38/54 ; C22C38/50 ; C22C38/48 ; C22C38/44 ; C22C38/06 ; C22C38/04 ; C22C38/02 ; C22C38/00
摘要:
A steel sheet for hot stamping includes an amount of 0.17 wt % to 0.25 wt % of carbon (C), an amount of 0.3 wt % to 1.0 wt % of silicon, an amount of 0.6 wt % to 1.0 wt % of manganese (Mn), an amount of 0.02 wt % or less of phosphorus (P), an amount of 0.01 wt % or less of sulfur (S), an amount of 0.1 wt % to 1.0 wt % of aluminum (Al), an amount of 0.001 wt % to 0.005 wt % of boron (B), an amount of 0.01 wt % to 0.1 wt % of titanium (Ti), an amount of 0.02 wt % to 0.06 wt % of niobium (Nb), an amount of 0.3 wt % to 1.0 wt % of a sum of at least one of chromium (Cr), nickel (Ni), and molybdenum (Mo), and the balance of iron (Fe) and other unavoidable impurities; and also a microstructure including ferrite and pearlite.
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