1、螺旋钢管水压-钢管尺寸和标准试验压力规定外径DSpecified outsidediameter规定壁厚t mmSpecified thickness最低试验压力 钢 级inmmL210(A)L245(B)L290(X42)L320(X46) L360(X52) L390(X56) L415(X60) L450(X65) L485(X70) L555(X80) 8-5/8219.15.07.010.013.05.88.111.515.0 6.79.413.417.49.913.919.920.711.015.320.720.712.317.320.720.713.418.720.720.714
2、.219.920.720.715.420.720.720.716.620.720.720.719.020.720.720.79-5/8244.55.07.010.013.05.27.210.313.46.08.412.015.610.114.120.220.711.115.620.720.712.517.520.720.713.619.020.720.714.420.220.720.715.620.720.720.716.920.720.720.719.320.720.720.710-3/4273.15.07.010.013.04.66.59.212.05.47.510.814.09.012.
3、918.120.710.113.919.920.711.215.720.720.712.117.020.720.712.918.120.720.714.019.620.720.715.420.720.720.717.320.720.720.712-3/4323.95.07.010.014.03.95.57.810.94.56.49.112.77.610.715.220.78.411.816.820.79.413.218.920.710.214.320.520.710.915.220.720.711.816.520.720.712.717.820.720.714.620.420.720.7(32
4、5.0)5.07.010.014.03.95.47.810.94.56.39.012.77.610.615.220.78.411.716.720.79.413.218.820.710.214.320.420.710.915.220.720.711.816.520.720.712.717.820.720.714.520.320.720.713-3/8339.75.08.012.016.03.75.98.911.94.36.910.413.87.311.617.420.78.012.819.220.79.014.420.720.79.815.620.720.710.416.620.720.711.
5、318.020.720.712.119.420.720.713.920.720.720.714355.65.08.012.016.04.35.78.511.35.06.69.913.28.311.116.620.79.212.218.420.710.313.820.720.711.214.920.720.711.214.920.720.712.917.220.720.713.918.620.720.715.920.720.720.7(377.0)5.08.012.016.04.05.38.010.74.76.29.412.57.810.515.720.78.611.517.320.79.713
6、.019.520.710.614.120.720.711.215.020.720.712.216.220.720.713.117.520.720.715.020.020.720.716406.46.08.012.016.019.125.43.75.07.49.911.715.54.35.88.711.613.618.17.39.714.619.620.78.010.716.120.720.79.012.018.120.720.79.813.119.620.720.710.413.920.720.720.711.315.120.720.720.712.216.220.720.720.713.91
7、8.620.720.720.7(426.0)6.08.012.016.019.125.43.54.77.19.511.315.04.15.58.311.013.217.56.99.313.918.520.77.710.215.320.420.78.611.517.220.720.79.312.518.720.720.79.913.219.920.720.710.814.420.720.720.711.615.520.720.720.713.317.720.720.720.718457.06.08.012.016.022.225.43.34.46.68.812.113.83.95.17.710.
8、314.016.16.58.612.917.320.77.19.514.319.020.78.010.716.120.720.78.711.617.420.720.79.312.418.520.720.710.013.420.120.720.710.814.420.720.720.712.416.520.720.720.720508.06.08.012.016.022.228.63.04.06.07.99.311.014.23.54.66.99.310.912.816.66.28.212.316.419.620.720.76.89.113.618.120.720.720.77.710.215.
9、320.420.720.720.78.311.116.620.720.720.78.811.817.620.720.720.79.612.819.120.720.720.710.313.720.620.720.720.711.815.720.720.720.720.7(529.0)6.09.012.014.016.019.122.228.62.91.35.76.77.69.110.613.63.35.06.77.88.910.612.315.95.98.911.813.815.818.820.720.76.59.813.115.217.420.720.720.77.311.014.717.11
10、9.620.720.720.78.011.915.918.620.720.720.78.512.716.919.820.720.720.79.213.818.420.720.720.720.79.914.919.820.720.720.720.711.317.020.720.720.720.720.7注：1、此表是GB/T9711-1997和APISL标准给出的最低（标准）试验压力，表中未列出的钢级，管径和壁厚的钢管的最低试验压力按下式计算并考虑标准对最高试验压力的限制，当采用GB/T9711.2-1999jf，除另有协议外，S中的系数为95%， 并规定D406.4mm，最大压力为50MPa；
11、D406.4mm，最大压力为25M Pa。式中：P-静水压试验压力（MPa）；S-标准规定最小总伸长应力（Rt10.5MPa）乘以标准所给系数；T-钢管壁厚（mm）；D-钢管外径（mm）。2、L210、L245钢级D48.3mm钢管的试验压力是给定的。其余外径和心中壁厚钢试验压力是按注1的公式计算的。3、按GB/T3091-2001生产的钢管应逐根进行水压试验，试验压力应符合表一规定。表一 公称外径（mm）Nominal outer diameter 试验压力（MPa）Test pressureD168.33168.3D323.95323.9D5083D5082.5DN15,DN20,DN25是外径。四分管和六分管的直径 1 英寸=25.4毫米 =8英分 1/2 是 四分(4英分) DN15 3/4 是 六分(6英分) DN20 2分管 DN8 4分管 DN15 6分管 DN20 1 DN25 1.2 DN32 1.5 DN40 2 DN50 2.5 DN65 3 DN80 4 DN100 5 DN125 6 DN150 8 DN200 10 DN250 12 DN300
