钢材成品检验报告单

***********有限公司成品检验报告单检验日期：2017-4-20冶炼炉号钢号规格（Фmm）长度（m）件数重量（Kg）技术条件成品状态672-090242Cr9Si2Ф8.54GB/T12773-2008√√冷退固磨拉火溶光化学成份（%）元素CMnSiPSCrNiNCuWMoVAlBCoTi含量0.400.492.240.0350.0058.370.32/0.11///////力学性能热处理制度(试样)屈服强度σ0.2(Mpa)抗拉强度σb(Mpa)伸长率δ5(%)收缩率ψ(%)成品硬度(HB)1030°C×20min油冷740°C×90min油冷71494026562517119362756250低倍组织金相检验顶锻试验表面质量偏析一般疏松中心疏松晶粒度（级）脱碳层mm非金属夹杂物评定级别无裂纹合格合格A类B类C类D类粗系细系粗系细系粗系细系粗系细系/0.5/10-11//0.5/1.0///1.0备注：直线度合格。gggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg结论：以上结果均符合GB/T12773-2008标准。检验员：质检中心意见：合格