| 发明名称 | Corrosion resistant lean austenitic stainless steel | ||
| 摘要 | An austenitic stainless steel composition having low nickel and molybdenum and exhibiting high corrosion resistance and good formability. The austenitic stainless steel includes, in weight %, up to 0.20 C, 2.0-6.0 Mn, up to 2.0 Si, 16.0-23.0 Cr, 5.0-7.0 Ni, up to 3.0 Mo, up to 3.0 Cu, 0.1-0.35 N, up to 4.0 W, up to 0.01 B, up to 1.0 Co, iron and impurities. The austenitic stainless steel has a ferrite number less than 11 and an MD30 value less than −10° C. | ||
| 申请公布号 | US9624564(B2) | 申请公布日期 | 2017.04.18 |
| 申请号 | US201414497747 | 申请日期 | 2014.09.26 |
| 申请人 | ATI PROPERTIES LLC | 发明人 | Bergstrom David S.;Rakowski James M.;Stinner Charles P.;Dunn John J.;Grubb John F. |
| 分类号 | C22C38/44;C22C38/52;C22C38/58;C22C38/54;C21D8/02;C22C38/00;C22C38/02;C22C38/42 | 主分类号 | C22C38/44 |
| 代理机构 | K&L Gates LLP | 代理人 | K&L Gates LLP |
| 主权项 | 1. An austenitic stainless steel comprising, in weight %, up to 0.20 C, 2.0-6.0 Mn, greater than 0.5 to less than 1.0 Si, 16.0-23.0 Cr, 5.0-7.0 Ni, less than 1.5 Mo, 0.1-0.30 N, up to 4.0 W, 0.0005-0.01 B, up to 1.0 Co, iron, and impurities, the steel having a ferrite number between 5.6 and 11, an MD30 value less than −10° C., a PREW value greater than 26 up to 30, and wherein 0.5≦(Mo +W/2)≦3.5. | ||
| 地址 | Albany OR US | ||