方管质保书

广州钢管厂有广州钢管厂ZKJ8240101产品质量证明书日期20130109合同编号0185品种名称方﹑矩形电焊钢管品种名称02065规格(mm)钢号批号检验依据数量(t)物理性能化学成份(%)项数检定σb(N/m㎡)δ5(%)PSCsiMn100*50*4Q235BZj3518903GB6728-8620415360.0140.0120.150.050.24合格120*80*4Q235BZj3518903GB6728-8622415360.0120.0220.080.040.27合格120*100*4Q235BZj3518903GB6728-8625415360.0010.0160.120.200.41合格200*100*6Q235BZj3518903GB6728-8628415360.0010.0160.120.200.41合格200*200*4Q235BZj3518903GB6728-8616445360.0010.0160.120.200.41合格工艺性能压扁试验(H)/外形尺寸合格审核人`制表人印章说明：外径公称尺寸≤50mm，做冷弯试验：外径公称尺寸50mm.做压扁试验。水压试验(MPa)/表面质量光滑冷弯试验(Rxφ)/镀锌层均匀性试验（次数）/备注扩口试验(30°、45°、60°)/