发明名称 |
Martensitic Stainless Steel with High Strength, High Toughness and High Corrosion Resistance |
摘要 |
The present invention provides a high performance-stainless steel exhibiting a corrosion resistance even under very severe corrosion environments at temperatures of equal to or higher than 180° C., for example, 220° C. while maintaining strength and a toughness by improving a corrosion resistance of a conventional martensitic stainless steel with high strength. The present invention provides a martensitic stainless steel containing, in mass %, C: 0.005% to 0.05%, Si: equal to or less than 1.0%, Mn: equal to or less than 2.0%, Cr: 16 to 18%, Ni: 2.5 to 6.5%, Mo: 1.5 to 3.5%, W: equal to or less than 3.5%, Cu: equal to or less than 3.5%, V: 0.01 to 0.08%, Sol.Al: 0.005 to 0.10%, N: equal to or less than 0.05%, and Ta: 0.01 to 0.06%, and the balance Fe with inevitable impurities. |
申请公布号 |
US2015191809(A1) |
申请公布日期 |
2015.07.09 |
申请号 |
US201314421927 |
申请日期 |
2013.04.24 |
申请人 |
NKK Tubes |
发明人 |
Hashizume Shuji;Taniguchi Tomomi |
分类号 |
C22C38/58;C21D6/00;C22C38/48;C22C38/46;C22C38/00;C22C38/42;C22C38/06;C22C38/04;C22C38/02;C21D8/00;C22C38/44 |
主分类号 |
C22C38/58 |
代理机构 |
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代理人 |
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主权项 |
1. A martensitic stainless steel containing, in mass %, C: 0.005% to 0.05%, Si: equal to or less than 1.0%, Mn: equal to or less than 2.0%, Cr: 16 to 18%, Ni: 2.5 to 6.5%, Mo: 1.5 to 3.5%, W: equal to or less than 3.5%, Cu: equal to or less than 3.5%, V: 0.01 to 0.08%, Sol.Al: 0.005 to 0.10%, N: equal to or less than 0.05%, and Ta: 0.01 to 0.06%, and the balance Fe with inevitable impurities. |
地址 |
Kawasaki-shi JP |