Spiral Welded Pipe
Welded steel pipe
Welded steel pipe, also known as welded pipe, is a steel pipe made of steel plate or strip steel after crimping and welding, generally with a length of 6 meters. The production process of welded steel pipe is simple, the production efficiency is high, there are many varieties and specifications, and the investment in equipment is small, but the general strength is lower than that of seamless steel pipe.
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Product Description

Carbon steel spiral welded pipe

Carbon steel spiral steel pipe is made by rolling low-carbon carbon structural steel into a tube blank according to a certain helical angle, and then welding the pipe seams. It can use narrow strip steel to produce large-diameter steel pipes. The main materials are q195, q235A, q235B, q345 and so on. Spiral welded pipes are single-sided welded and double-sided welded. The welded pipes should ensure that the hydraulic test, the tensile strength of the weld and the cold bending performance must meet the regulations. Carbon steel spiral steel pipe is mainly used in drainage and water supply projects, fluid liquid, and solid conveying pipelines. It is widely used in urban construction and municipal engineering.

Product nameSpiral welded steel pipe for penstocks project diameter 300mm to 3500mm SSAW penstock
GB/T9711-1997 GB/T9711-2011
Steel gradeASTM A53, A135, A500, A795, BS1387, BS1139, BS39, Q235A, Q235B, 16Mn, 20#, Q345, L245, L290, X42, X46, X70, X80
WT: 6-60mm
Length:5.8m, 11.8m or according to customers'demands
Applicationapplied in structure,construction,accessorize,transmission
Ends1)plain ends
2)beveled ends
3)thread ends
Ends protectinPlastic caps
Surface treatment1)bared
2)black painting
3)anti-corrosion oil
4)3PE,FBE,EPOXY Coating
Weld Technique1)ERW: Electronic Resistance Welded
2)EFW: Electronic Fusion Welded
3)SSAW: Spirally Submered Arc Welded
Section shapeRound
2)in buck
Production capacity2000,000tons each year
CertificateAPI & ISO

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