型钢等规格表

W=0.02466(D-S)S

碳钢焊接钢管每米单重计算公式：

W=0.0246615(D-S)S

不锈钢无缝钢管每米单重计算公式：

W=0.02491(D-S)S

低压流体输送用焊接钢管(GB/T3091-2001)公称口径毫米英寸外径公称尺寸(毫米)21.326.933.742.448.360.376.188.9114.3139.7168.3普通钢管加厚钢管理论重量(千克/米)1.2.022.933.794.866.197.9510.3513.4818.224.02允差±0.50mm±0.50mm±0.50mm±0.50mm±0.50mm±1%±1%±1%±1%±1%±1%1520253240506580100125150公称外径(毫米)177.8193.7219.1244.5273323.9355.06.41月2日3月4日111月4日11月2日22月21日3456壁厚壁厚理论重公称尺公称尺量(千克寸(毫允差(%)寸(毫允差(%)/米)米)米)2.81.283.52.81.663.53.22.4143.53.33.53.874.5±12.5±12.55.293.84.7.114.8.3810.8813.395..518.186公称壁厚(毫米)417.1418.7121.2223.724.519.232123.8226.63  　  521.3123.2726.429.5333.0539.325.523.3725.5328.9732.4236.2843.1947.49.38625.4227.7731.5335.2939.5147.0451.7359.2534.0838.12.7250.8855.96.16.57理论重量 (千克/米) 　  36.614145.92.7160.1868.9510  41.66.6652.2862.3268.5878.6  46.6352.2758.669.76.9388.2  51.5757.83.8677.4185.2397.76   457.2508559610公称外径(毫米)66071176281314 　   61.2768.1675.0866.7674.2881.8383.9772.2580.3988.5796.7477.7286.4995.29104.188.6298.6599.48110.29110.75122.81108.71122.07135.39118.77133.39147.97公称壁厚(毫米) 81.99696.77104.32111.86119.41126.96134.366.5104.76112.93121.11129.28137.46 145.477112.73121.53130.34139.14147.94156.588128.63138.7148.76158.82168.88178.759144.49155.81167.13178.451.77200.8710111314理论重量 (千克/米) 207.43 223.78240.13256.48272.83288.86 238.60 240.65258.26275.86293.47310.7315 2.11 257.47276.33295.2314.06332.56160.30 176.06172.88 1.185.45203.73198.03217.56210.61231.4222.94244.961112.5141516  84.83.48107.26  95.99105.77121.43 121.04134.82148.66162.49137.09152.75168.47184.19188.17205.78 201.24220.1　  214.26234.38米)

161819315.67 324.25 348.15 372.04 395.94419.37 20 345.15 340.82 365.98391.13 416.29 440.9522 346.15373.82 401.49 426.16 456.83 483.9625391.22.944.39485.83517.278.1克/米)

284.99300.35 274.24 307.63294.36 330.27 314.48 352.91334.61 375.55 3.34397.74