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US08828557B2 High strength galvanized steel sheet having excellent formability, weldability, and fatigue properties and method for manufacturing the same 有权
优异的成形性，焊接性和疲劳特性的高强度镀锌钢板及其制造方法

High strength galvanized steel sheet having excellent formability, weldability, and fatigue properties and method for manufacturing the same
Abstract:
A high strength galvanized steel sheet including all in mass %, C: 0.05% to
Abstract(Chinese):

1.一种高强度镀锌钢板，其全部以质量％计，C：0.05％〜<0.12％，Si：0.35％〜<0.80％，Mn：2.0〜3.5％，P：0.001〜0.040％，S：0.0001〜0.0050％ ，Al：0.005〜0.1％，N：0.0001〜0.0060％，Cr：0.01〜0.5％，Ti：0.010〜0.080％，Nb：0.010〜0.080％，B：0.0001〜0.0030％ Mo：0.01〜0.15％，Ca：0.0001〜0.0050％，REM：0.0001〜0.1％，Sb：0.0001〜0.1％，Fe和不可避免的杂质作为平衡，具有含有体积分数的铁素体相的组织 20〜70％的范围，平均粒径等于或小于5μm，并且在其表面上具有涂层重量（每边）为20至150g / m 2的镀锌层。

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