名称焊接钢管型号及规格（公称直径 DN）1520253240506580100125150200型号及规格（公称直径 DN）1520253240506580100125150200型号及规格（公称直径）外径（￠）21.326.833.542.34860.375.588.5114140165219外径（￠）21.326.833.542.34860.375.588.5114140165219外径及壁厚￠76*3.576*476*4.589*3.589*489*4.5108*4108*4.5108*5133*4133*4.5133*5159*4.5159*5159*6219*6壁厚（δ）2.752.753.253.253.53.53.754444.56壁厚（δ）2.752.753.253.253.53.53.754444.56名称镀锌钢管名称无缝钢管219*7219*8273*8325*8325*10377*8377*10426*8426*10名称电线套管型号及规格（公称口径）Dg13§=1.616§=1.719§=1.825§=1.832§=1.838§=1.851§=2.064§=2.576§=3.2外径￠12.715.8819.0525.431.7538.150.863.576.2理论数据汇总表
单位重量（㎏/m）1.251.632.423.133.844.886.648.3410.8515.0417.8131.52单位重量（㎏/m）1.331.732.573.324.075.177.048.8411.5016.8518.8833.41单位重量（㎏/m）6.267.17.937.388.389.3810.2611.4912.712.7314.2615.7617.1518.9922.6431.52表面积(㎡/m)0.06690.08420.10520.13290.15080.18850.23720.2780.35810.43980.51840.688表面积(㎡/m)0.06690.08420.10520.13290.15080.18850.23720.2780.35810.43980.51840.688表面积(㎡/m)0.23880.23880.23880.27960.27960.27960.33930.33930.33930.41780.41780.41780.49950.49950.49950.68836.641.6352.2862.5477.6872.890.582.46102.59单位重量（㎏/m）0.4380.5810.7661.0481.3291.6112.4073.765.7610.6880.6880.85771.0211.0211.18441.18441.33831.3383表面积(㎡/m)0.03990.04990.05980.07980.09970.11970.15960.19950.2394
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