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1. 发明公开

EP1495150A4 HIGH-GRADE DUPLEX STAINLESS STEEL WITH MUCH SUPPRESSED FORMATION OF INTERMETALLIC PHASES AND HAVING AN EXCELLENT CORROSION RESISTANCE , EMBRITTLEMENT RESISTANCE, CASTABILITY AND HOT WORKABILITY 有权
标题翻译： WITH金属间相和优良的耐腐蚀性，耐氢脆性，铸造性和热加工性的强抑制成型质量双相钢
公开(公告)号：EP1495150A4
公开(公告)日：2005-09-07
申请号：EP03713027
申请日：2003-03-24
申请人： PARK YONG S
发明人： PARK YONG-SOO , KIM SOON-TAE , LEE IN-SUNG
IPC分类号： C22C38/00 , C22C38/42 , C22C38/44 , C22C38/58
CPC分类号： C22C38/44 , C21D2211/001 , C21D2211/005 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/42 , C22C38/58
摘要： Formation of intermetallic phases such as sigma (sigma) and khi (chi) shows detrimental effects on the corrosion and mechanical properties of high-grade duplex stainless steel. The present invention provides high-grade duplex stainless steel with much suppressed formation of intermetallic phases, of which the chemical composition consists essentially, on a weight basis, of : Cr : 21.0% ~ 38.0%, Ni : 3.0% ~ 12.0%, Mo : 1.5% ~.6.5%, W : 6.5% or less, Si : 3.0% or less, Mn : 8.0% or less, N : 0.2% ~ 0.7%, C :0.1% or less, at least one element selected from the group consisting of Ba : 0.0001 ~ 0.6% and one or more elements of Mischmetal (MM) and Y : 0.0001 ~ 1.0% in total, and a balance of Fe and incidental impurities. The pitting resistance equivalent has a value of 40
摘要翻译：金属间相的形成：如σ（A）和川崎（c）示出对腐蚀的有害影响和高档双相不锈钢的机械性能。本发明提供了高档双相不锈钢与多抑制形成金属间相，它的化学组成besteht本质上，以重量计，的：铬：21.0％ - 38.0％以下，Ni：3.O％ - 12.0％以下，Mo：1.5％ - 6.5％，W：6.5％以下，Si：3.0％以下，Mn：8.0％以下，N：0.2％ - 0.7％，C：0.1％或更低，至少一种元件选自Ba中选择的：0.0001 - 0.6％和混合金属（MM）的一个或多个元素和Y：0.0001 - 总共1.0％，以及Fe和不可避免的杂质的平衡。该耐孔蚀当量具有由下式（1）中所定义的40‰PREW‰67的值：PREW =重量％的Cr + 3.3（.. %%重量的Mo + 0.5重量W）+ 30重量％N ---。 - （1）本高档双相不锈钢显示出优良的耐腐蚀性，耐氢脆性，铸造能力和热加工性。

2. 发明专利

DE60313763T8 未知
公开(公告)号：DE60313763T8
公开(公告)日：2008-05-29
申请号：DE60313763
申请日：2003-03-24
申请人： PARK YONG S
发明人： PARK YONG-SOO , KIM SOON-TAE , LEE IN-SUNG
IPC分类号： C22C38/44 , C22C38/00 , C22C38/42 , C22C38/58
摘要： Formation of intermetallic phases such as sigma (Ã) and khi (Ç) shows detrimental effects on the corrosion and mechanical properties of high-grade duplex stainless steel. The present invention provides high-grade duplex stainless steel with much suppressed formation of intermetallic phases, of which the chemical composition consists essentially, on a weight basis, of: Cr: 21.0% - 38.0%, Ni: 3.o% - 12.0%, Mo: 1.5% - 6.5%, W: 6.5% or less, Si: 3.0% or less, Mn: 8.0% or less, N: 0.2% - 0.7%, C: 0. 1% or less, at least one element selected from the group consisting of Ba: 0.0001 - 0.6% and one or more elements of Mischmetal (MM) and Y: 0.0001 - 1.0% in total, and a balance of Fe and incidental impurities. The pitting resistance equivalent has a value of 40 ‰ PREW ‰ 67 defined by the following formula (1): PREW = wt.%Cr + 3.3(wt.%Mo + 0.5wt.%W) + 30wt.% N-----(1) The present high-grade duplex stainless steel exhibits an excellent corrosion resistance, embrittlement resistance, castability and hot workability.

3. 发明专利

AU2003221202A1 HIGH-GRADE DUPLEX STAINLESS STEEL WITH MUCH SUPPRESSED FORMATION OF INTERMETALLIC PHASES AND HAVING AN EXCELLENT CORROSION RESISTANCE , EMBRITTLEMENT RESISTANCE, CASTABILITY AND HOT WORKABILITY 未知
公开(公告)号：AU2003221202A1
公开(公告)日：2003-10-08
申请号：AU2003221202
申请日：2003-03-24
申请人： PARK YONG S
发明人： KIM SOON-TAE , LEE IN-SUNG , PARK YONG-SOO
IPC分类号： C22C38/00 , C22C38/42 , C22C38/44 , C22C38/58
摘要： Formation of intermetallic phases such as sigma (Ã) and khi (Ç) shows detrimental effects on the corrosion and mechanical properties of high-grade duplex stainless steel. The present invention provides high-grade duplex stainless steel with much suppressed formation of intermetallic phases, of which the chemical composition consists essentially, on a weight basis, of: Cr: 21.0% - 38.0%, Ni: 3.o% - 12.0%, Mo: 1.5% - 6.5%, W: 6.5% or less, Si: 3.0% or less, Mn: 8.0% or less, N: 0.2% - 0.7%, C: 0. 1% or less, at least one element selected from the group consisting of Ba: 0.0001 - 0.6% and one or more elements of Mischmetal (MM) and Y: 0.0001 - 1.0% in total, and a balance of Fe and incidental impurities. The pitting resistance equivalent has a value of 40 ‰ PREW ‰ 67 defined by the following formula (1): PREW = wt.%Cr + 3.3(wt.%Mo + 0.5wt.%W) + 30wt.% N-----(1) The present high-grade duplex stainless steel exhibits an excellent corrosion resistance, embrittlement resistance, castability and hot workability.

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