螺旋鋼管水壓標(biāo)準(zhǔn)試驗壓力

1、.螺旋鋼管水壓-鋼管尺寸和標(biāo)準(zhǔn)試驗壓力規(guī)定外徑DSpecified outsidediameter規(guī)定壁厚t mmSpecified thickness最低試驗壓力 鋼 級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 6.79.413.417.49.913.919.920.711.015.320.720.712.317.320.720.713.418.720.720.71

2、4.219.920.720.715.420.720.720.716.620.720.720.719.020.720.720.79-5/8244.55.07.010.013.05.27.210.313.46.08.412.015.610.114.120.220.711.115.620.720.712.517.520.720.713.619.020.720.714.420.220.720.715.620.720.720.716.920.720.720.719.320.720.720.710-3/4273.15.07.010.013.04.66.59.212.05.47.510.814.09.012

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(3

4、25.0)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)5.08.012.016.04.05.38.010.74.76.29.412.57.810.515.720.78.611.517.320.79.71

6、3.019.520.710.614.120.720.711.215.020.720.712.216.220.720.713.117.520.720.715.020.020.720.716406.46.08.012.016.019.125.43.75.07.49.911.715.54.35.88.711.613.618.17.39.714.619.620.78.010.716.120.720.79.012.018.120.720.79.813.119.620.720.710.413.920.720.720.711.315.120.720.720.712.216.220.720.720.713.9

7、18.620.720.720.7(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)6.09.012.014.016.019.122.228.62.91.35.76.77.69.110.613.63.35.06.77.88.910.612.315.95.98.911.813.815.818.820.720.76.59.813.115.217.420.720.720.77.311.014.717.1

10、19.620.720.720.78.011.915.918.620.720.720.78.512.716.919.820.720.720.79.213.818.420.720.720.720.79.914.919.820.720.720.720.711.317.020.720.720.720.720.7注：1、此表是GB/T9711-1997和APISL標(biāo)準(zhǔn)給出的最低（標(biāo)準(zhǔn)）試驗壓力，表中未列出的鋼級，管徑和壁厚的鋼管的最低試驗壓力按下式計算并考慮標(biāo)準(zhǔn)對最高試驗壓力的限制，當(dāng)采用GB/T9711.2-1999jf，除另有協(xié)議外，S中的系數(shù)為95%， 并規(guī)定D406.4mm，最大壓力為50MPa

11、；D406.4mm，最大壓力為25M Pa。式中：P-靜水壓試驗壓力（MPa）；S-標(biāo)準(zhǔn)規(guī)定最小總伸長應(yīng)力（Rt10.5MPa）乘以標(biāo)準(zhǔn)所給系數(shù)；T-鋼管壁厚（mm）；D-鋼管外徑（mm）。2、L210、L245鋼級D48.3mm鋼管的試驗壓力是給定的。其余外徑和心中壁厚鋼試驗壓力是按注1的公式計算的。3、按GB/T3091-2001生產(chǎn)的鋼管應(yīng)逐根進(jìn)行水壓試驗，試驗壓力應(yīng)符合表一規(guī)定。表一 公稱外徑（mm）Nominal outer diameter 試驗壓力（MPa）Test pressureD168.33168.3D323.95323.9D5083D5082.5DN15,DN20,DN25是外徑。四分管和六分管的直徑 1 英寸=2