1、普通无缝钢管常用规格（摘自 YB231-70）壁厚（毫米）2.5 3.0 3.5 4.0 4.5 5.0 6.0 7.0 8.0 9.0 10.0 12.0外径毫米 理论重量（公斤米）12141820253238424557607376891021081141331401591682192452733253774264805300.5860.7090.9561.081.391.762.192.442.623.363.554.354.535.336.136.500.6660.811.111.261.632.152.592.893.114.004.225.185.406.367.327.770.7
2、340.911.251.421.862.462.983.353.584.624.886.006.267.388.509.020.7890.991.381.582.072.763.353.754.045.235.526.817.108.389.6710.2610.4812.7313.421.501.722.283.053.724.16.4.495.836.167.607.939.3810.8211.4912.1514.2615.0717.151.601.852.473.334.074.564.936.416.788.388.7510.3611.9612.7013.4415.7816.6518.9
3、920.102.072.813.854.745.335.777.557.999.9110.3612.2814.2115.0915.9818.7919.8322.6423.9731.523.114.325.356.046.568.639.1511.3911.9114.1616.4017.4418.4721.7522.9626.2427.7936.6041.0945.924.475.956.717.309.6710.2612.8213.1215.9818.5519.7320.9124.6626.0429.7931.5741.6346.7652.2862.547.327.9910.6511.3214.2114.3717.7620.6421.9723.3127.5229.0833.2935.2946.6152.3858.6070.1481.6892.55104.54115.6225.5630.3332.0636.7538.9751.5457.9564.8677.6890.51102.59115.90128.2330.1935.8137.8843.5046.1761.2668.9577.2492.63108.02122.52139.49154.29
