基本信息:
- 专利标题: DUPLEX STAINLESS STEEL
- 专利标题(中):双相不锈钢
- 申请号:PCT/FI2015/050065 申请日:2015-02-02
- 公开(公告)号:WO2015114222A1 公开(公告)日:2015-08-06
- 发明人: OLIVER, James , JONSSON, Jan Y.
- 申请人: OUTOKUMPU OYJ
- 申请人地址: Riihitontuntie 7 FI-02200 Espoo FI
- 专利权人: OUTOKUMPU OYJ
- 当前专利权人: OUTOKUMPU OYJ
- 当前专利权人地址: Riihitontuntie 7 FI-02200 Espoo FI
- 代理机构: OUTOKUMPU OYJ
- 优先权: FI20145113 20140203
- 主分类号: C22C38/42
- IPC分类号: C22C38/42 ; C22C38/44 ; C22C38/00 ; C22C38/02 ; C22C38/04
摘要:
The invention relates to a duplex ferritic austenitic stainless steel having high formability utilizing the TRIP effect and high corrosion resistance with the balanced pitting resistance equivalent. The duplex stainless steel contains less than 0,04 weight % carbon, 0,2 - 0,8 weight % silicon, less than 2,0 weight % manganese, 16,5 - 19,5 weight % chromium, 3,0 - 4,7 weight % nickel, 1,5 - 4,0 weight % molybdenum, less than 3,5 weight % tungsten, less than 1 weight % copper, 0,13 - 0,26 weight % nitrogen, the rest being iron and inevitable impurities occurring in stainless steels.
摘要(中):
本发明涉及一种利用TRIP效应具有高成型性和高耐腐蚀性并具有平衡点蚀电阻当量的双相铁素体奥氏体不锈钢。 双相不锈钢含有小于0.04重量%的碳,0.2至0.8重量%的硅,小于2.0重量%的锰,16.5至19.5重量%的铬,3.0-4 ,7重量%的镍,1.5-4.0重量%的钼,小于3.5重量%的钨,小于1重量%的铜,0.13-0.26重量%的氮,其余是铁和不可避免的 杂质发生在不锈钢中。