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    CORROSION-RESISTANT STEEL MATERIAL FOR CRUDE OIL TANKER
    1.
    发明公开
    CORROSION-RESISTANT STEEL MATERIAL FOR CRUDE OIL TANKER 审中-公开
    耐蚀钢原油油轮材料

    公开(公告)号：EP2377963A4

    公开(公告)日：2015-08-05

    申请号：EP09835097

    申请日：2009-12-22

    申请人： JFE STEEL CORP

    发明人： KOMORI TSUTOMU ,  SHIOTANI KAZUHIKO ,  INOHARA YASUTO

    IPC分类号： C22C38/20 ,  C22C38/60

    CPC分类号： C22C38/02 ,  C21D9/46 ,  C22C38/008 ,  C22C38/20 ,  C22C38/22 ,  C22C38/38 ,  C22C38/60

    摘要： This invention provides a corrosion-resistant steel product for tanker that is excellent in the corrosion resistance in a corrosion environment of oil tanks of tankers and also excellent in the corrosion resistance after coating in a corrosion environment of ballast tanks. Specifically, this invention provides a corrosion-resistant steel product for crude oil tanker containing, by mass%, C: 0.03 to 0.16%, Si: 0.05 to 1.50%, Mn: 0.1 to 2.0%, P: 0.025% or lower S: 0.01% or lower, Al: 0.005 to 0.10%, N: 0.008 % or lower, Cr: more than 0.1% and 0.5% or lower, and Cu: 0.03 to 0.5% and, as an alternative addition element, one or two or more elements selected from W: 0.01 to 0.5%, Mo: 0.01 to 0.50, Sn: 0.001 to 0.2%, Sb: 0.001 to 0.5%, Ni: 0.005 to 0.3%, and Co: 0.005 to 0.3%, and further containing Cu, W, Mo, Sn, Sb, Cr, Ni, Co, S, and P in such a manner as to satisfy a specific relationship.

    CORROSON-RESISTANT STEEL MATERIAL FOR CRUDE OIL STORAGE TANK, AND CRUDE OIL STORAGE TANK
    2.
    发明公开
    CORROSON-RESISTANT STEEL MATERIAL FOR CRUDE OIL STORAGE TANK, AND CRUDE OIL STORAGE TANK 有权
    KORROSIONSBESTÄNDIGESSTAHLMATERIALFÜRROHÖLLAGERTANKUNDROHÖLLAGERTANK

    公开(公告)号：EP2009125A4

    公开(公告)日：2017-08-16

    申请号：EP07707039

    申请日：2007-01-12

    申请人： JFE STEEL CORP

    发明人： SHIOTANI KAZUHIKO ,  INOHARA YASUTO ,  KOMORI TSUTOMU

    IPC分类号： C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/22 ,  C22C38/60

    CPC分类号： C22C38/22 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/60

    摘要： A steel material is provided which can reduce local corrosion generated at a bottom plate and general corrosion generated at a roof plate and a side plate when the above steel material is used, for example, for an oil tank of an oil tanker, a tank for transporting crude oil, and a tank for storing crude oil. A steel material for a crude oil tank includes: 0.001 to 0.16 mass percent of C, 0.01 to 1.5 mass percent of Si, 0.1 to 2.5 mass percent of Mn, 0.025 mass percent or less of P, 0.01 mass percent or less of S, 0.005 to 0.1 mass percent of Al, 0.001 to 0.008 mass percent of N, 0.001 to 0.5 mass percent of W, and 0.06 to less than 0.20 mass percent of Cr, the balance being Fe and inevitable impurities.

    摘要翻译： 本发明提供一种钢材，该钢材能够减少在使用上述钢材时在底板产生的局部腐蚀和在顶板和侧板产生的一般腐蚀，例如，油船的油罐， 运输原油和储存原油的罐子。 一种原油罐用钢材，其特征在于，含有C：0.001〜0.16质量％，Si：0.01〜1.5质量％，Mn：0.1〜2.5质量％，P：0.025质量％以下，S：0.01质量％ ，Al：0.005〜0.1质量％，N：0.001〜0.008质量％，W：0.001〜0.5质量％，Cr：0.06〜0.20质量％以下，其余为Fe和不可避免的杂质。