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各国对于焊接钢管的标准要求

我们在定制焊接钢管的时候,都需要确定很多参数才能制作。这些参数除了可以确定出焊接钢管规格之外,还对应了焊接钢管的用途。那么,不同国家对于焊接钢管都有哪些不同的标准呢?

首先是中国的国内标准。

中国国家标准GB/T3091-2001低压流体输送用(镀锌)焊接钢管
Galvanized welded steel pipe under GB/T 3091-2001 for low pressure liquids delivery
公称尺寸外径(毫米)普通钢管加厚钢管
Nominal SizeOutside Diameter()Ordinary steel pipeExtra thick steel pipe
英寸公称尺寸允差壁厚允差理论重量(黑管)壁厚允差理论重量(黑管)
InchNominal SizeToieranceWall thicknessToieranceTheoretic weight(kg/m) (black pipe)Wall thicknessToieranceTheoretic weight(kg/m) (black pipe)
1/221.3±0.50mm2.80±12.5%1.283.50±12.5%1.54
3/426.9±0.50mm2.80±12.5%1.663.50±12.5%2.02
133.7±0.50mm3.20±12.5%2.414.00±12.5%2.93
1-1/442.4±0.50mm3.50±12.5%3.364.00±12.5%3.79
1-1/248.3±0.50mm3.50±12.5%3.874.50±12.5%4.86
260.3±1%3.80±12.5%5.294.50±12.5%6.19
2-1/276.1±1%4.00±12.5%7.114.50±12.5%7.95
388.9±1%4.00±12.5%8.385.00±12.5%10.35
4114.3±1%4.00±12.5%10.885.00±12.5%13.48
5139.7±1%4.00±12.5%13.395.50±12.5%18.20
6168.3±1%4.50±12.5%18.186.00±12.5%24.02
8219.1±0.75%4.0-6.0

然后是英国标准

英国标准BS1387-1985焊接钢管或BS21螺纹钢管
BS1387-1985, British Standard for welded steel pipe, or BS 21 for threaded steel pipe
公称尺寸壁厚(毫米)外径(毫米)重量(黑管)千克/米螺纹
Outside Diameter(mm)Weight(Black pipe)kg/mThread
Nominal SizeWall Thickness(mm)最大最小平头 Pian End每英寸扣数有效长度
Max.Min.参考值 Reference nember
毫米英寸ABCABCABCABCThread number per inchLength of pipe(mm)
mmInch
151/22.02.63.221.421.721.721.021.121.10.9471.211.441413.2
203/42.32.63.226.927.227.226.426.626.61.381.561.871414.5
2512.63.24.033.834.234.233.233.433.41.982.412.941116.8
321-1/42.63.24.042.542.942.941.942.142.12.543.103.801119.1
401-1/22.93.24.048.448.848.847.848.048.03.233.574.381119.1
5022.93.64.560.260.860.859.659.859.84.085.036.191123.4
652-1/23.23.64.576.076.676.675.275.475.45.716.437.931126.7
8033.24.05.088.789.589.587.988.188.16.728.3710.301129.8
10043.64.55.4113.9114.9114.9113.0113.3113.39.7512.1014.501135.8
1255-5.05.4-140.6140.6-138.7138.7-16.6017.90--
1506-5.05.4-166.1166.1-164.1164.1-19.7021.30--

最后是美国标准

美国材料试验协会标准ASTM A53-1996 黑管和热浸镀锌焊接及无缝钢管
Black pipe, hot-dipped Galvanized welded steel pipe and seamless steel pipe under ASTM A53-1996
公称尺寸外径(毫米)壁厚(毫米)重量级别系列号A 级试验压力(Mpa)黑管重量(kg/m) 平头
Nominal SizeOutside Diameter(mm)Wall Thickness(mm)Weight GradeSchedule numberGrade A Test pressureWeight(Black pipe) Plain End
1/221.32.77STD404.831.27
3/426.72.87STD404.831.69
133.43.38STD404.832.50
1-1/442.23.56STD408.273.39
1-1/248.33.68STD408.274.05
260.33.91STD4015.865.44
2-1/273.05.16STD4017.248.63
388.95.49STD4015.3111.29
4114.36.02STD4013.1016.07

这几个标准是国内焊接钢管厂家经常生产的钢管标准。如果客户询价时只是说要标准的钢管,那就需要查阅上述表格,来确定客户需要的到底是哪种规格的焊接钢管。如果连钢管规格都无法确定,报出的焊接钢管价格自然不准确,丢失客户在所难免。

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