Ferritic stainless steel sheet superior in shapeability and method of production of the same
    10.
    发明申请
    Ferritic stainless steel sheet superior in shapeability and method of production of the same 有权
    铁素体不锈钢板的成型性优良,生产方法相同

    公开(公告)号:US20090000703A1

    公开(公告)日:2009-01-01

    申请号:US12229825

    申请日:2008-08-26

    IPC分类号: C21D8/02 C22C38/22 C22C38/26

    摘要: The present invention provides a ferritic stainless steel sheet superior in shapeability containing, by wt %, C: 0.001 to 0.010%, Si: 0.01 to 1.0%, Mn: 0.01 to 1.0%, P: 0.01 to 0.04%, Cr: 10 to 20%, N: 0.001 to 0.020%, Nb: 0.3 to 1.0%, and Mo: 0.5 to 2.0%, wherein the total precipitates are, by wt %, 0.05 to 0.60%. A method of production of a ferritic stainless steel sheet superior in shapeability comprising producing a cold rolling material in the production process so that the Nb-based precipitates become, by vol %, 0.15% to 0.6% and have a diameter of 0.1 μm to 1 μm and/or so that the recrystallized grain size becomes 1 μm to 40 μm and the recrystallization rate becomes 10 to 90%, then cold rolling and annealing it at 1010 to 1080° C.

    摘要翻译: 本发明提供一种成形性优异的铁素体系不锈钢板,其含有C:0.001〜0.010%,Si:0.01〜1.0%,Mn:0.01〜1.0%,P:0.01〜0.04%,Cr:10〜 20%,N:0.001〜0.020%,Nb:0.3〜1.0%,Mo:0.5〜2.0%,其中总重量为0.05〜0.60%。 一种制造成型性优异的铁素体系不锈钢板的制造方法,其特征在于,包括在制造工序中制造冷轧材料,以使Nb系析出物以体积%计为0.15%〜0.6%,直径为0.1〜1质量% 和/或使得再结晶粒径为1〜40μm,再结晶率为10〜90%,然后冷轧并在1010〜1080℃退火。