发明名称 |
HEAT-TREATED STEEL MATERIAL AND METHOD FOR PRODUCING SAME |
摘要 |
A heat-treated steel material includes: a chemical composition expressed by, in mass%: C: 0.16% to 0.38%; Mn: 0.6% to 1.5%; Cr: 0.4% to 2.0%; Ti: 0.01% to 0.10%; B: 0.001% to 0.010%; Si: 0.20% or less; P: 0.05% or less; S: 0.05% or less; N: 0.01% or less; Ni: 0% to 2.0%; Cu: 0% to 1.0%; Mo: 0% to 1.0%; V: 0% to 1.0%; A1: 0% to 1.0%; Nb: 0% to 1.0%; REM: 0% to 0.1%; and the balance: Fe and impurities; and a structure expressed by: retained austenite: 1.5 volume% or less; and the balance: martensite. |
申请公布号 |
EP3006586(A1) |
申请公布日期 |
2016.04.13 |
申请号 |
EP20140808254 |
申请日期 |
2014.06.06 |
申请人 |
NIPPON STEEL & SUMITOMO METAL CORPORATION |
发明人 |
TABATA, SHINICHIRO;HIKIDA, KAZUO;KOJIMA, NOBUSATO;MIZUI, NAOMITSU |
分类号 |
C22C38/00;C21D1/84;C21D6/00;C21D8/02;C21D8/04;C21D9/00;C21D9/46;C22C38/02;C22C38/04;C22C38/06;C22C38/20;C22C38/22;C22C38/24;C22C38/26;C22C38/28;C22C38/32;C22C38/38;C22C38/48;C22C38/50;C22C38/54;C22C38/60 |
主分类号 |
C22C38/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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