Welding material for austenite stainless steel having high Si content
and method of application
    2.
    发明授权
    Welding material for austenite stainless steel having high Si content and method of application 失效
    具有高Si含量的奥氏体不锈钢焊接材料和应用方法

    公开(公告)号:US4653684A

    公开(公告)日:1987-03-31

    申请号:US650763

    申请日:1984-09-12

    CPC分类号: B23K35/3086

    摘要: This invention relates to a welding material for welding a high-Si austenite stainless steel, capable of ensuring a high corrosion resistance of the weld metal in hot nitric acid of high concentration, while maintaining a toughness of the weld metal not smaller than 2 Kg-m/cm.sup.2, and the method of application therefor. The welding material has a composition containing not greater than 0.015% of C, 5 to 7% of Si, not greater than 2% of Mn, 15 to 20% of Cr, 10 to 22% of Ni, not greater than 0.02% of N, not greater than 0.45% of one or both of Nb and Ta, and the balance substantially Fe and inevitable impurities the sum of C and N contents is selected to be not greater than 0.03% and the sum of Nb and Ta contents is selected to be not smaller than 15.times.(C+N)%. The Ni-balance value given by the following formula ranges between -4 and -2.Ni balance value=% Ni+30(%C+%N)+0.5(%Mn)-1.1(%Cr+1.5.times.%Si)+8.2

    摘要翻译: 本发明涉及一种用于焊接高Si奥氏体不锈钢的焊接材料,其能够确保焊接金属在高浓度热硝酸中的高耐蚀性,同时保持焊接金属的韧性不小于2Kg- m / cm 2及其应用方法。 该焊接材料的组成为:C:不大于0.015%,Si:5〜7%,Mn:2%以下,Cr:15〜20%,Ni:10〜22%,Ni: N,不大于Nb和Ta中的一种或两种的0.45%,余量基本上为Fe和不可避免的杂质,C和N含量的总和被选择为不大于0.03%,并且选择Nb和Ta的总和 不小于15x(C + N)%。 由以下公式给出的Ni平衡值范围介于-4和-2之间。 Ni平衡值=%Ni + 30(%C +%N)+0.5(%Mn)-1.1(%Cr + 1.5x%Si)+8.2

    Manufacturing process for plate or forging of ferrite-austenite
two-phase stainless steel
    3.
    发明授权
    Manufacturing process for plate or forging of ferrite-austenite two-phase stainless steel 失效
    铁素体 - 奥氏体两相不锈钢板或锻造的制造工艺

    公开(公告)号:US4659397A

    公开(公告)日:1987-04-21

    申请号:US646896

    申请日:1984-08-31

    CPC分类号: C21D8/005 C22C38/40

    摘要: This invention relates to a manufacturing process for plate or forging (bar, stamp work or the like) of ferrite-austenite two-phase stainless steel, containing C at 0.03% or below, Si at 2.0% or below, Mn at 2.0% or below, Cr at 25 to 35%, Ni at 6 to 15%, N at 0.35% or below, and Fe and inevitable impurity for the remainder with or without adding B at 0.001 to 0.030% with the following nickel balance value specified at -3 to -9 and comprising an average crystal grain size at 0.015 mm or below from heating an ingot of the above mentioned ferrite-austenite two-phase stainless steel at 1,200.degree. C. or below and keeping a forging ratio by hot working at 5 or over.Ni balance value=Ni %+0.5 Mn %+30.times.(C+N) %-1.1(Cr %+1.5 Si %)+8.2

    摘要翻译: 本发明涉及含有0.03%以下的C,2.0%以下的Si,2.0%以下的Mn的铁素体 - 奥氏体相两相不锈钢的板或锻造(钢筋,冲压加工等)的制造方法, 25%〜35%的Cr,6〜15%的Ni,0.35%以下的N,Fe和不可避免的杂质,其余有或没有添加B为0.001〜0.030%,以下的镍平衡值规定为: 在上述铁素体 - 奥氏体相两相不锈钢锭的1200℃或更低温度下加热锭子的平均晶粒尺寸为0.015mm或更小,并且通过热加工保持锻压比为5或 过度。 Ni平衡值= Ni%+ 0.5 Mn%+ 3​​0x(C + N)%-1.1(Cr%+ 1.5Si%)+ 8.2