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1、 圆钢理论重量表大全圆钢直径d(型号) 理论重量 kg/m圆钢直径d(型号) 理论重量kg/m圆钢圆钢5.50.186131.0460.222141.216.50.26151.3970.302161.5880.395171.7890.499182100.617192.23* 110.746202.47120.888212.72222.986324.5* 233.26* 6526243.55* 6828.5253.857030.2264.177534.7* 274.498039.5284.838544.5* 295.189049.9305.559555.6* 315.9210061.7326.3
2、110568* 336.7111074.6347.1311581.5* 357.5512088.8367.9912596.3388.9130104409.861401214210.91501394512.51601584814.21701785015.41802005317.3190223* 5518.62002475619.3220298* 5820.72503856022.2常用钢管规格型号一览表序号规格壁厚（mm）每米理论重量（kg）通常长度备注通经外径（mm）1、热轧无缝钢管1DN404332.899米/根或10米/根2DN50573436034.224DN65733.565763.5
3、6.266DN80893.57.387DN100108410.268DN125133412.739DN1501594.517.1510DN200219631.5211DN250273745.9212DN300325862.542、低压流体输送焊接钢管1DN15（1/2”）21.32.751.266米/根括号内的表示英制通经2DN20(3/4”)26.82.751.633DN25(1”)33.53.252.424DN32(1-1/4”)42.33.253.135DN40(1-1/2”)483.53.846DN50(2”)603.54.887DN65(2-1/2”)75.53.756.648DN8
4、0(3”)88.548.349DN100(4”)114410.8510DN125(5”)1404.515.0411DN150(6”)1654.517.813、螺旋缝埋弧焊钢管1DN200219632.0312米/根2DN250273640.013DN300325647.544DN350377655.45DN400426662.656DN4504808104.527DN5005298115.628DN6006308137.819DN70072010175.610DN80082010200.2611DN90092010224.9212DN1000102010249.58常用钢管名称公称通经DN/m
5、m外径D*壁厚（mm*mm）单位长度重量kg/m无缝钢管DN6576*47.10DN8089*48.38DN100108*410.26DN125133*4.514.26DN150159*518.99螺旋焊缝钢管DN200219*631.52DN250273*639.51DN300325*647.20DN350377*654.90DN400426*662.15DN450478*669.84钢板卷焊管DN500530*677.53DN600630*692.33DN700720*6105.64DN800820*6120.44DN900920*6135.24DN10001020*6150.03钢管每米理论重量计算公式： W=3.1416*（D）/1000W钢管每米理论重量kg/m； 钢的密度kg/dm-3；7.81、7.85、7.91 D钢管的公称外径mm；钢管的公称壁厚mm；