| 发明名称 |
TWO-PHASE STAINLESS STEEL EXHIBITING EXCELLENT CORROSION RESISTANCE IN WELD |
| 摘要 |
A nitrogen-rich two-phase stainless steel that has corrosion resistance equal to that of standard type of two-phase stainless steel and is not susceptible to corrosion in a welding heat-affected part, wherein the austenite phase area ratio is 40-70%, the PI value expressed by formula (1) is 30-38, the NI value expressed by formula (2) is 100-140, and the ³pre expressed by formula (3) is 1350-1450. (1) PI=Cr+3. 3Mo+16N (2) NI=(Cr+Mo)/N |
| 申请公布号 |
EP2684973(B1) |
申请公布日期 |
2016.06.08 |
| 申请号 |
EP20120754869 |
申请日期 |
2012.03.09 |
| 申请人 |
NIPPON STEEL & SUMIKIN STAINLESS STEEL CORPORATION |
发明人 |
OIKAWA, YUSUKE;TSUGE, SHINJI;INOUE, HIROSHIGE;MATSUHASHI, RYO |
| 分类号 |
C22C38/00;C21D6/00;C21D8/02;C22C38/02;C22C38/06;C22C38/42;C22C38/44;C22C38/46;C22C38/48;C22C38/50;C22C38/52;C22C38/54;C22C38/58 |
主分类号 |
C22C38/00 |
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