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HC400/690TR化学成份范围值:注:实际化学成分以钢厂质保书为准。碳C:≤0.28硅Si:≤2.0锰Mn:≤2.0硫S:≤0.09磷P:≤0.015全铝Alt0.015-2.00其他微量元素Ni+Cr+Mo≤1.5 ,Cu≤0.20HC400/690TR力学性能范围值:注:实际力学性能以钢厂质保书为准。HC400/690TR抗拉强度σb(MPa):≥690HC400/690TR屈服强度σ0.2(MPa):400-520HC400/690TR伸长率A80mm(%):≥24n90≥0.19HC400/690TR试样尺寸:试样毛坯尺寸为小于1.1mmHC400/690TR应用:主要用于结构件、加强件等。显微组织为铁素体、贝氏体和残余奥氏体,其中,残余奥氏体的含量不少于 5%。在成形过程中,残余奥氏体可相变为马氏体组织,由于其较高的加工硬化率,这种钢具有较高的均匀伸长率和较高的抗拉强度,在同等抗拉强度水平下较双相钢具有更高的延伸率。钢号:HC400/690TR产品名称:相变诱导塑性高强度冷轧钢执行标准:Q/BQB417-2009交货状态:冷轧,具体交货状态应在质保书中注明。钢厂:鞍钢、宝钢等。



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