Description

ERW steel tube

ERW steel tube is a general name of resistance welding steel pipe, which is divided into AC welding steel pipe and DC welding steel pipe two forms of AC welding according to the different frequency is divided into low frequency welding, middle frequency welding, ultra middle frequency welding and high frequency welding. High frequency welding is mainly used in the production of thin-wall steel pipe or ordinary thick steel pipe, which is divided into contact welding and induction welding. Dc welding is generally used for small diameter steel tubes.  

ERW stands for resistance welding. Resistance welding is widely used in aviation, aerospace, energy, electronics, automotive, light industry and other industrial sectors because of its high production efficiency, low cost, material saving and easy automation. It is one of the important welding processes.

Specification

Product name：ERW steel tube

Place of origin：China

Brand：WL

Standard： API 5L、API 5CT、ASTM、EN10219，GB/T9711、GB/T3793，GB/T14291，GB/T3091

Material：Gr.B,X42,X52,X60,X65,X70,J55,K55,N80,L80,P110

OD：DN6-DN650

WT：1mm-30mm

Unit length：5.8m, 6m, 6.1m, 11.8m, 12m or as per customers’ request.

Type：welded

Surface protection：hot dip galvanized ，coat with varnish , 3PE , FBE

Section shape：round

End：plain end ，bevel end ，thread ，coupling ，groove

Per-shipment test

Our company will test the steel pipes after production and before shipment. Such as, outer diameter measuring，Wall thickness measuring，Length measuring，tensile test, bending test, flattening test, hydrostatic test, NDE test, etc.

Packing and Transportation

The packaging of steel pipe  

Bundled or bulk, plastic pipe cap or pipe end protector, woven bag or as required  

Transport of steel pipe 

Container ships, bulk carriers, trains

Application 

ERW steel tube is mainly used in tap water engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, urban construction and other aspects.  

For gas transportation: gas, heating steam, liquefied petroleum gas.  

For liquid transportation: water supply, drainage.  

For structural use: for piling pipes, Bridges;  Pipe for wharf, road, building structure, etc.  

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