低压流体输送用焊接钢管

低压流体输送用焊接钢管(GB/T3091-2001)公称口径外径毫米英寸公称尺寸普通钢管壁厚理论重量加厚钢管壁厚理论重量允差公称尺寸允差(千克/米)公称尺寸允差(千克/米)表1(毫米)(毫米)(%)(毫米)(%)151/221.30.50mm2.81.283.51.54203/426.90.50mm2.81.663.52.0225133.70.50mm3.22.414.02.933211/442.40.50mm3.53.364.03.794011/248.30.50mm3.53.874.54.8650260.31.0%3.812.55.294.512.56.196521/276.11.0%4.07.114.57.9580388.91.0%4.08.385.010.351004114.31.0%4.010.885.013.481255139.71.0%4.013.395.518.201506168.31.0%4.518.186.024.02表2公称外径(毫米)公称壁厚(毫米)4.04.55.05.56.06.57.08.09.010.011.012.514.015.016.0理论重量(千克/米)177.17.119.221.323.325.4843172193.18.721.023.225.527.7710737219.21.223.826.428.931.534.0122073836.6141.6546.6351.57244.23.726.629.532.435.238.15273.2332941.0046.6652.2757.83533.036.239.542.745.9252.2858.6064.860581254.7162.3269.8977.4184.8895.9950868.174.280.3110.7122.8134.8152.768986.4998.65512555975.081.888.5108.7122.0135.3148.6168.4188.1201.2214.283795.291796774661081.983.996.7104.1118.7133.3147.9162.4184.1205.7220.1234.3974079799808323.39.343.147.050.892948355.647.451.755.9936105.760.1868.5876.9385.2393.487406.454.359.264.1850107.2121.468.9578.6088.2097.7663457.261.266.772.2765110.2121.0137.077.7288.6299.48949表3公公称壁厚(毫米)称外6.06.57.08.09.010.011.013.014.015.016.018.019.020.022.025.0径6696.7104.112.128.144.160.176.207.238.254.284.300.315.345.346.391.0776736349300643601199356715155071104.112.121.138.155.172.189.223.240.257.274.307.324.340.373.422.13293537081888978654724632582829476111.121.130.148.167.185.203.240.258.276.294.330.348.365.401.4454.2861134761345731326333627159893981119.129.139.158.178.198.217.256.275.295.314.352.372.391.426.485.34128148245035648862048910413168386126.137.147.168.189.210.231.272.293.314.334.375.395.416.456.517.49646948877614083470661559429832791134.145.156.178.200.222.244.288.310.332.354.397.419.440.483.548.436475875879496867356347437959610(毫米)理论重量(千克/米)根据需方要求，经供需双方，并在中注明，可供表2、3中以外的钢管。钢管通常以mm定尺交货，或可按客户要求生产。