| 发明名称 | Lean austenitic stainless steel containing stabilizing elements | ||
| 摘要 | An austenitic stainless steel composition including relatively low nickel and molybdenum levels, and exhibiting corrosion resistance, resistance to elevated temperature deformation, and formability properties comparable to certain alloys including higher nickel and molybdenum levels. Embodiments of the austenitic stainless steel include, in weight %, up to 0.20 C: 2.0 to 9.0 Mn, up to 2.0 Si, 16.0 to 23.0 Cr, 1.0 to 7.0 Ni, up to 3.0 Mo, up to 3.0 Cu, 0.05 to 0.35 N, up to 4.0 W, (7.5(C))≦(Nb+Ti+V+Ta+Zr)≦1.5, up to 0.01 B, up to 1.0 Co, iron and impurities. Additionally, embodiments of the steel may include 0.5≦(Mo+W/2)≦5.0 and/or 1.0≦(Ni+Co)≦8.0. | ||
| 申请公布号 | US9133538(B2) | 申请公布日期 | 2015.09.15 |
| 申请号 | US201213683084 | 申请日期 | 2012.11.21 |
| 申请人 | ATI PROPERTIES, INC. | 发明人 | Rakowski James M.;Bergstrom David S.;Stinner Charles P.;Dunn John J.;Grubb John F. |
| 分类号 | C22C38/58;C22C38/44;C22C38/46;C22C38/48;C22C38/50;C22C38/54;C22C38/38;C22C38/42;C22C38/00;C22C38/02;C22C38/52 | 主分类号 | C22C38/58 |
| 代理机构 | K&L Gates LLP | 代理人 | Grosselin, III John E.;K&L Gates LLP |
| 主权项 | 1. An austenitic stainless steel consisting of, in weight percentages: up to 0.20 C; greater than 4.0 to 9.0 Mn; less than 1.0 Si; 18.0-23.0 Cr; 1.0 to less than 6.0 Ni; up to 3.0 Mo; 0.05-0.35 N; up to 4.0 W; (7.5(C)) ≦(Nb +Ti +V +Ta +Zr)≦1.5; 0.0005 to 0.01 B; greater than 0 to 1.0 Co; iron; and impurities; wherein the austenitic stainless steel has a yield strength from 46.1 to 53.7 ksi. | ||
| 地址 | Albany OR US | ||