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1、焊接鋼管標準(GB/T3091-2001)發(fā)布者：源晟鍵焊管機械模具發(fā)布時間：2013.02.01低壓流體輸送用焊接鋼管(GB/T3091-2001)表?1?公稱口徑外徑?普通鋼管?加厚鋼管?毫米?英寸?公稱尺寸(毫米)?允差?壁厚?理論重量(千克/米)?壁厚?理論重量(千克/米)?公稱尺寸(毫米)?允差(%)?公稱尺寸(毫米)?允差(%)?15?1/2?21.3?0.50mm?2.8?12.5?1.28?3.5?12.5?1.54?20?3/4?26.9?0.50mm?2.8?1.66?3.5
2、?2.02?25?1?33.7?0.50mm?3.2?2.41?4.0?2.93?32?11/4?42.4?0.50mm?3.5?3.36?4.0?3.79?40?11/2?48.3?0.50mm?3.5?3.87?4.5?4.86?50?2?60.3?1.0%?3.8?5.29?4.5?6.19?65?21/2?76.1?1.0%?4.0?7.11?4.5?7.95?80?3?88.9?1.0%?4.0?8.38?5.0?10.35?100?4?114.3?1.0%?4.0?10.88?5.0
3、?13.48?125?5?139.7?1.0%?4.0?13.39?5.5?18.20?150?6?168.3?1.0%?4.5?18.18?6.0?24.02?表?2公稱外徑(毫米)?公稱壁厚(毫米)?4.0?4.5?5.0?5.5?6.0?6.5?7.0?8.0?9.0?10.0?11.0?12.5?14.0?15.0?16.0?理論重量?(千克/米)?177.8?17.14?19.23?21.31?23.37?25.42??? ?? ?? ?? ? ? ? ? ? ?193.7?18.71
4、?21.00?23.27?25.53?27.77?? ??? ?? ?? ? ? ? ? ? ?219.1?21.22?23.82?26.40?28.97?31.53?34.08?36.61?41.65?46.63?51.57?? ? ? ? ?244.5?23.72?26.63?29.53?32.42?35.29?38.15?41.00?46.66?52.27?57.83?? ? ? ? ? ?273.0??? ?33.05?36.28?39.51?42.72?45.92?52.28?58.
5、60?64.86??? ?? ? ? ?323.9??? ?39.32?43.19?47.04?50.88?54.71?62.32?69.89?77.41?84.88?95.99?? ? ?355.6?? ???? ?47.49?51.73?55.96?60.18?68.58?76.93?85.23?93.48?105.77?? ? ?406.4??? ? ?54.38?59.25?64.10?68.95?78.60?88.20?97.76?107.26?121.43?? ? ?457.2??
6、? ?61.27?66.76?72.25?77.72?88.62?99.48?110.29?121.04?137.09?? ? ?508??? ? ?68.16?74.28?80.39?86.49?98.65?110.75?122.81?134.82?152.75??? ? ??559?? ?? ?75.08?81.83?88.57?95.29?108.71?122.07?135.39?148.66?168.47?188.17?201.24?214.26?610??? ?? ?81.99?83.
7、97?96.74?104.10?118.77?133.39?147.97?162.49?184.19?205.78?220.10?234.38?表?3公稱外徑(毫米)公稱壁厚(毫米)?6.0?6.5?7.0?8.0?9.0?10.0?11.0?13.0?14.0?15.0?16.0?18.0?19.0?20.0?22.0?25.0理論重量?(千克/米)?660?96.77?104.76?112.73?128.63?144.49?160.30???176.06??207.43??238.60??2
8、54.11??284.99?300.35??315.67???345.15??346.15?391.50711?104.32?112.93?121.53?138.70?155.81?172.88???189.89??223.78??240.65??257.47??274.24??307.63??324.25??340.82?373.82??422.94762?111.86?121.11?130.34?148.76?167.13?185.45?203.73?240.13?258.26?276.33
