Hot-dip Al—Zn coated steel sheet
    5.
    发明授权
    Hot-dip Al—Zn coated steel sheet 有权
    热浸镀锌钢板

    公开(公告)号:US09034480B2

    公开(公告)日:2015-05-19

    申请号:US13989287

    申请日:2011-11-25

    Abstract: There is provided a hot-dip Al—Zn coated steel sheet that has a steel sheet containing Si and Mn as a base steel sheet and has excellent coating appearance and corrosion resistance. The Al—Zn coating layer has an Al content in the range of 20% to 95% by mass. The Al—Zn coating layer has a Ca content in the range of 0.01% to 10% by mass. Alternatively, the Ca and Mg content is in the range of 0.01% to 10% by mass. A steel sheet surface layer within 100 μm from a surface of the base steel sheet directly under the Al—Zn coating layer contains 0.06 to 1.0 g/m2 per surface of an oxide of at least one selected from Fe, Si, Mn, Al, P, B, Nb, Ti, Cr, Mo, Cu, and Ni in total.

    Abstract translation: 提供了一种热浸镀铝锌钢板,其具有含有Si和Mn作为基础钢板的钢板,并且具有优异的涂层外观和耐腐蚀性。 Al-Zn涂层的Al含量在20质量%至95质量%的范围内。 Al-Zn系涂层的Ca含量为0.01质量%〜10质量%。 或者,Ca和Mg含量在0.01质量%至10质量%的范围内。 在从Al-Zn被覆层的正下方的基材钢板的表面100μm以下的钢板表面层,含有选自Fe,Si,Mn,Al中的至少一种以上的氧化物的表面0.06〜1.0g / m 2, P,B,Nb,Ti,Cr,Mo,Cu和Ni。

Patent Agency Ranking