发明名称 |
COLD-WORK DIE STEEL AND DIE |
摘要 |
The present invention relates to a cold-work die steel, comprising by mass %: 0.5 to 0.7% of C; 0.5 to 2.0% of Si; 0.1 to 2.0% of Mn; 5 to 7% of Cr; 0.01 to 1.0% of Al; 0.003 to 0.025% of N; 0.25 to 1% of Cu; 0.25 to 1% of Ni; 0.5 to 3% of Mo; 2% or less (including 0%) of W; and 0.1% or less (excluding 0%) of S, with a remainder being iron and an unavoidable impurity; wherein the following requirements (1) to (3) are satisfied: (1) [Cr]×[C]≦̸4; (2) [Al]/[N]: 1 to 30; and (3) [Mo]+0.5×[W]: 0.5 to 3.00%, wherein the bracket means a content (%) of an element written therein.
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申请公布号 |
US2010135844(A1) |
申请公布日期 |
2010.06.03 |
申请号 |
US20080598328 |
申请日期 |
2008.09.18 |
申请人 |
KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL,LTD.);NIPPON KOSHUHA STEEL CO., LTD. |
发明人 |
MURAKAMI SHOGO;NAMBA SHIGENOBU;YAMAMOTO KENJI;TONOMURA TSUYOSHI |
分类号 |
C22C38/42;B21D37/00;C22C38/60 |
主分类号 |
C22C38/42 |
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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