发明授权
- 专利标题： Martensitic precipitation-hardenable stainless steel
- 专利标题（中）： 马氏体沉淀硬化不锈钢
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申请号： US462969申请日： 1990-01-04
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公开(公告)号： US5035855A公开(公告)日： 1991-07-30
- 发明人: Takeshi Utsunomiya , Kazuo Hoshino , Sadao Hirotsu
- 申请人： Takeshi Utsunomiya , Kazuo Hoshino , Sadao Hirotsu
- 申请人地址： JPX Tokyo
- 专利权人： Nisshin Steel Company, Ltd.
- 当前专利权人： Nisshin Steel Company, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX58-143587 19830805
- 主分类号： C22C38/00
- IPC分类号： C22C38/00 ; C22C38/42 ; C22C38/44 ; C22C38/50 ; C22C38/58
摘要：
A martensitic precipitation-hardenable stainless steel essentially consisting of, in weight percent, not more than 0.08% C, 0.5-4.0% Si, not more than 4.0% Mn, 5.0-9.0% Ni, 10.0-17.0% Cr, more than 0.3% and up to 2.5% Mo, 0.15-1.0% Ti, not more than 1.0% Al and not more than 0.03% N and the balance being Fe, and inevitable incidental impurities, which may contain 0.3-2.5% Cu is disclosed. This steel has low hardness before aging and exhibits high strength and good toughness after aging.
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