| 发明名称 |
HIGH STRENGTH AUSTENITIC STAINLESS STEEL HAVING EXCELLENT RESISTANCE TO HYDROGEN EMBRITTLEMENT, METHOD FOR MANUFACTURING THE SAME, AND HYDROGEN EQUIPMENT USED FOR HIGH-PRESSURE HYDROGEN GAS AND LIQUID HYDROGEN ENVIRONMENT |
| 摘要 |
This high strength austenitic stainless steel having excellent resistance to hydrogen embrittlement includes, in terms of mass %, C: 0.2% or less, Si: 0.2% to 1.5%, Mn: 0.5% to 2.5%, P: 0.06% or less, S: 0.008% or less, Ni: 10.0% to 20.0%, Cr: 16.0% to 25.0%, Mo: 3.5% or less, Cu: 3.5% or less, N: 0.01% to 0.50%; and O: 0.015% or less, with the balance being Fe and unavoidable impurities, in which an average size of precipitates is 100 nm or less and an amount of the precipitates is 0.001% to 1.0% in terms of mass %. |
| 申请公布号 |
US2016281187(A1) |
申请公布日期 |
2016.09.29 |
| 申请号 |
US201615078562 |
申请日期 |
2016.03.23 |
| 申请人 |
Nippon Steel & Sumikin Stainless Steel Corporation |
发明人 |
MATSUMOTO Kazuhisa;HATANO Masaharu |
| 分类号 |
C21D9/00;C22C38/50;C22C38/48;C22C38/46;C22C38/44;F17C1/10;C22C38/06;C22C38/04;C22C38/02;C22C38/00;C21D8/00;C22C38/54;C22C38/42 |
主分类号 |
C21D9/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A high strength austenitic stainless steel having excellent resistance to hydrogen embrittlement comprising, in terms of mass %:
C: 0.2% or less; Si: 0.2% to 1.5%; Mn: 0.5% to 2.5%; P: 0.06% or less; S: 0.008% or less; Ni: 10.0% to 20.0%; Cr: 16.0% to 25.0%; Mo: 3.5% or less; Cu: 3.5% or less; N: 0.01% to 0.50%; and O: 0.015% or less, with the balance being Fe and unavoidable impurities, wherein an average size of precipitates is 100 nm or less and an amount of the precipitates is 0.001% to 1.0% in terms of mass %. |
| 地址 |
Tokyo JP |
