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1、焊接鋼管標(biāo)準(zhǔn)(GB/T3091-2001)發(fā)布者:源晟.鍵焊管機(jī)械模具.發(fā)布時(shí)間:.2013.02.01低壓流體輸送用焊接鋼管(GB/T3091-2001) 表1公稱(chēng)口徑外徑普通鋼管加厚鋼管毫米英寸公稱(chēng)尺寸(毫米)允差壁厚理論重量(千克/米)壁厚理論重量(千克/米)公稱(chēng)尺寸(毫米)允差(%)公稱(chēng)尺寸(毫米)允差(%)151/221.30.50mm2.81.283.51.54203/426.90.50mm2.81.663.52.0225133.70.50mm3.22.414.02.933211/442.40.50mm3.53.364.03.794011/248.30.50mm3.53.874.5

2、4.8650260.31.0%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公稱(chēng)外 徑(毫米)公稱(chēng)壁厚(毫米)4.04.55.05.56.06.57.08.09.010.011.012.514.015.016.0理論重量 (千克/米)177.817.1419.2321.3123.3725.42193.718.712

3、1.0023.2725.5327.77219.121.2223.8226.4028.9731.5334.0836.6141.6546.6351.57244.523.7226.6329.5332.4235.2938.1541.0046.6652.2757.83273.033.0536.2839.5142.7245.9252.2858.6064.86323.939.3243.1947.0450.8854.7162.3269.8977.4184.8895.99355.647.4951.7355.9660.1868.5876.9385.2393.48105.77406.454.3859.2564.10

4、68.9578.6088.2097.76107.26121.43457.261.2766.7672.2577.7288.6299.48110.29121.04137.0950868.1674.2880.3986.4998.65110.75122.81134.82152.7555975.0881.8388.5795.29108.71122.07135.39148.66168.47188.17201.24214.2661081.9983.9796.74104.10118.77133.39147.97162.49184.19205.78220.10234.38表3公 稱(chēng)公稱(chēng)壁厚(毫米)6.0 6.5

5、7.081.09).0 10.011.013.014.015.016.018.019.020.022.025.0外 徑(毫理論重量 (千克/米)米)66096.77104.76112.7128.6144.4160.30176.0207.4238.6254.1284.9300.35315.67345.1346.1391.339630195550711104.3112.93121.5138.7155.8172.88189.8223.7240.6257.4274.2307.6324.2340.8373.82422.23019857435294 1762111.8r6121.11130.34148.7

6、6167.13185.45203.73240.13258.26276.33294.36330.27348.15365.98401.49454.39313119.4129.28139.1158.8178.4198.03217.56256.48275.86295.20314.4352.9372.0391.13426.1485.1425814683 1364126.9137.46147.9168.8189.7210.61231.40272.83293.47314.06334.61375.55395.9416.2456.8517.r648749327914134.3r6145.47156.58178.

7、75200.87222.94244.96288.86310.73332.56354.34397.74419.37440.95483.96548.10中國(guó)國(guó)家標(biāo)準(zhǔn) GB/T3091-93 CHINA NATIONAL STANDARDGB/T3091-93GB/T3091-93低壓流體輸送用鍍鋅焊接鋼管THE Gavanized welded steel pipe up to CHINA NATIONAL STANDARDGB/T3091-93 for Low Pressure Service公徑口稱(chēng)外徑普通鋼管加厚鋼管螺紋DNn公稱(chēng)允許Wall Thick ness理論Wall Thick n

8、ess理論每寸長(zhǎng)度mm尺寸偏差公稱(chēng)尺寸允許偏差重量公稱(chēng)尺寸允許偏差重量牙數(shù)151/221.32.751.323.251.511411.415.0203/426.82.751.713.502.091412.716.325133.5 0.50mm3.252.514.003.001114.519.13211/442.33.253.254.003.901116.821.44011/248.03.50+12-153.984.25+12 -154.721116.821.450260.03.505.064.506.331121.125.76521/275.53.756.874.508.101123.230.230388.54.008.614.7510

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