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ABRASION-RESISTANT STEEL SHEET HAVING EXCELLENT PROCESSABILITY, AND METHOD FOR PRODUCTION THEREOF 发明授权

2023-07-02 4640 899K 0

专利信息

申请日期 2025-07-10 申请号 KR1020097021902
公开(公告)号 KR101165654B1 公开(公告)日 2012-07-09
公开国别 KR 申请人省市代码 全国
申请人 JFE STEEL CORPORATION
简介 An abrasion resistant steel excellent in bending formability and suitable for members, e.g., power shovels, which come into contact with earth and sand, and a production method thereof are provided. Specifically, the steel contains, on a percent by mass basis, 0.05% to 0.35% of C, 0.05% to 1.0% of Si, 0.1% to 2.0% of Mn, 0.1% to 1.2% of Ti, 0.1% or less of Al, at least one element of 0.1% to 1.0% of Cu, 0.1% to 2.0% of Ni, 0.1% to 1.0% of Cr, 0.05% to 1.0% of Mo, 0.05% to 1.0% of W, and 0.0003% to 0.0030% of B, if necessary at least one element of 0.005% to 1.0% of Nb and 0.005% to 1.0% of V, and the remainder including Fe and incidental impurities, where DI* represented by the following formula is less than 60. DI * = 33.85 × 0.1 × C * 0.5 × 0.7 × Si + 1 × 3.33 × Mn + 1 × 0.35 × Cu + 1 × 0.36 × Ni + 1 × 2.16 × Cr + 1 × 3 × Mo * + 1 × 1.5 × W * + 1 where C* = C - 1/4 × (Ti - 48/14N), Mo* = Mo × (1 - 0.5 × (Ti - 48/14N)), and W* = W × (1 - 0.5 × (Ti - 48/14N)).


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