Duplex stainless steel
    1.
    发明授权
    Duplex stainless steel 有权
    双相不锈钢

    公开(公告)号:US06749697B2

    公开(公告)日:2004-06-15

    申请号:US09796442

    申请日:2001-03-02

    IPC分类号: C22C3844

    CPC分类号: C22C38/44 C22C38/58

    摘要: The present invention relates to a duplex stainless steel alloy with austenite-ferrite structure, which in hot extruded and annealed finish shows high strength, good corrosion resistance, as well as good weldability which is characterized in that the alloy contains in weight-% max 0.05% C, 0-2.0% Si 0-3.0% Mn, 25-35% Cr, 4-10% Ni, 2-6% Mo, 0.3-0.6% N, as well as Fe and normally occurring impurities and additions, whereby the content of ferrite is 30-70%.

    摘要翻译: 本发明涉及一种具有奥氏体 - 铁素体结构的双相不锈钢合金,其在热挤压和退火处理中表现出高强度,良好的耐腐蚀性以及良好的可焊性,其特征在于该合金的重量%最大0.05 %C,0-2.0%Si 0-3.0%Mn,25-35%Cr,4-10%Ni,2-6%Mo,0.3-0.6%N,以及Fe和通常存在的杂质和添加物,其中 铁素体含量为30-70%。