碳素钢、合金钢无缝钢管的尺寸和理论质量公称直径外径SCH20DN10152025(32)4050(65)80100(125)150200250300350400450500550600mm1722273442486076114140168219273325350575085596103...55.05.05.56.56.56.58.08.08.09.59.59..887.939.3813.4416.6520.0434.02.7251.0568.6578.5288.58116.78128.73140.686.57.08.08.59.59.511.013.013.014.025.36.6052.2866.3481.1792.120.98158.69175.04205.76mmkg/mmmSCH30kg/mmm2.53.03.03.53..04.05.05.56.06.57.08.09.510.011.013.014.015.017.018.0SCH40kg/m0.1.411.782.633.334.345.528.7511.3315.9821.4027.7941.6361.7377.63.58125.99152.94182.36227.22262.785.06.06.57.08.09.510.013.014.015.017.019.020.022.025.06.7810.3613.2218.4726.0437.1351.83.35107.37126.14163.08205.22240.68291.33360.65mmSCH60kg/mmm3..04.04.55.05.05.57.07.58.59.511.013.015.017.019.022.024.026.028.032.0SCH80kg/m1.171.782.273.274.565.307.3911.9115.0722.1130.5742.5966.0495.43129.12157.90208.33256.27309.04366.456.1115.018.022.024.026.030.032.035.038.075.46113.191.38196.49243.315.375.62452.26536.017.08.09.011.013.014.018.022.025.028.032.035.038.042.045.09.1513.4217.7627.9440.7153.17.22136.17184.95226.48295.133.23440.43535.47626.9820.025.028.032.036.040.045.048.052.098.15152.205.07255.67328.47411.33513.79604.86715.535.05.56.56.57.08.59.511.014.016.018.024.028.034.036.040.045.050.0.060.02.102.924.415.697.0810.7915.5821.1634.5248.9366.58115.41169.17244.00284.08361.02457.205.71672.48813.787.58.09.010.010.011.014.015.017.019.022.023.025.026.02.683.755.557.9.3713.2921.4027.3740.6656.6979.21111.17152.191.71mm壁厚及理论质量SCH100kg/mmmSCH120kg/mmmSCH140kg/mmmSCH160kg/mmmXXSkg/m