焊接钢管规格

1、.低压流体输送用焊接钢管(GB/T3091-2001)表 1公称口径外径普通钢管加厚钢管壁厚理论重量 ( 千壁厚理论重量 ( 千毫米英寸公称尺寸允差公称尺寸允差公称尺寸允差克/米)(毫米 )(毫米)克/ 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%3.85.294.512.56.196521/276.11

2、.0%4.012.54.57.957.1180388.91.0%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公称公称壁厚 ( 毫米 )外径4.04.55.05.56.06.57.08.09.010.011.012.514.015.016.0( 毫理论重量 ( 千克 /米)米 )177.17.119.221.323.325.4843172193.18.721.023.225.527.7710737219.21.223.826.428

3、.931.534.036.6141.6546.6351.571220738244.23.726.629.532.435.238.141.0046.6652.2757.835233295273.33.036.239.542.745.9252.2858.6064.8605812.323.39.343.147.050.854.7162.3269.8977.4184.8895.9992948355.47.451.755.960.1868.5876.9385.2393.48105.769367406.54.359.264.168.9578.6088.2097.76107.2121.4485063457.

4、61.266.772.277.7288.6299.48110.2121.0137.0276594950868.174.280.386.4998.65110.7122.8134.8152.7689512555975.081.888.595.29108.7122.0135.3148.6168.4188.1201.2214.28371796774661081.983.996.7104.1118.7133.3147.9162.4184.1205.7220.1234.3974079799808表 3公 公称壁厚 (毫米)称 6.0 6.5 7.0 8.0 9.0 10.0 11.0 13.0 14.0

5、15.0 16.0 18.0 19.0 20.0 22.0 25.0 外径理论重量 ( 千克 /米)( 毫米 )6696.7104.112.128.144.160.176.207.238.254.284.300.315.345.346.391.0776736349300643601199356715155071104.112.121.138.155.172.189.223.240.257.274.307.324.340.373.422.13293537081888978654724632582829476111.121.130.148.167.185.203.240.258.276.294.3

6、30.348.365.401.454.28611347613457313263336271598493981119.129.139.158.178.198.217.256.275.295.314.352.372.391.426.485.34128148245035648862048910413168386126.137.147.168.189.210.231.272.293.314.334.375.395.416.456.517.49646948877614083470661559429832791134.145.156.178.200.222.244.288.310.332.354.397.

7、419.440.483.548.436475875879496867356347437959610中国国家标准 GB/T3091-93 CHINA NATIONAL STANDARD GB/T3091-93GB/T3091-93低压流体输送用镀锌焊接钢管THE Gavanized welded steel pipe up to CHINA NATIONAL STANDARD GB/T3091-93for Low Pressure Service公径口称外 径普通钢管加厚钢管螺 纹DNin公称允许Wall Thickness理论Wall Thickness理论每寸长度mm尺寸偏差公称尺寸允许偏差

8、重量公称尺寸允许偏差重量牙数151/221.3±0.50mm2.75+121.323.25+121.511411.415.0203/426.82.75-151.713.50-152.091412.716.3.25133.53.252.514.003.001114.519.13211/44 2.33.253.254.003.901116.821.44011/24 8.03.503.984.254.721116.821.450260.03.505.064.506.331121.125.76521/27 5.53.756.874.508.101123.230.280388.54.008.614.7510.071126.33