Electric resistance welded (ERW)steel pipes | Hebei Haihao Group

Electric resistance welded (ERW)steel pipes

Electrical resistance welded steel pipes(ERW steel pipes) are manufactured by cold forming of steel coil into a round cylindrical shape are used in various engineering purposes.

ASTM A53 Grade B ERW Steel Pipes

ASTM A53 Grade B ERW Steel Pipes

Specifications of electrical resistance welded steel pipes(ERW steel pipes):

Outside Diameter 21.3mm-610mm
Wall thickness 3.5mm-25mm
Length 3m-20m
Standard ASTM A53,API 5L,DIN 2458,EN 10217,GB/T3091,GB/T9711,etc.
Grade ASTM A53 Gr B
API 5L Gr B,X42,X52,X56,X60,X65,X70
EN: S275, S275JR, S355JRH, S355J2H
GB: Q195, Q215, Q235, Q345, L175, L210, L245, L320, L360-L555
Package bags,bundles,losses containers or client option.

Electrical resistance welded steel pipes(ERW steel pipes) manufacturing process:

Uncoiling->Smoothing->End cutting->End shearing welding->Super coil accumulator->Edge conditioning->Strip edge and body ultrasonic testing->Forming->H.F welder(Electric resistance welding)->Ultrasonic testing for weld seam->Post annealing(normalizing)->Air cooling(water cooling)->Sizing->Flying shear->Flush-out->Cropping->Flattening testing->Straightening->End facing->Hydraulic testing->Ultrasonic detection->Ultrasonic testing for pipe end->Visual and dimensional inspection->Weighing and measuring->Super coil accumulator->Coating->Pipe end protector->Banding->Shipping

Electric resistance welded steel pipe ERW steel pipe manufacture process

Electric resistance welded steel pipe ERW steel pipe manufacture process

Haihao Group manufacture seamless steel pipes,welded steel pipes(ERW,LSAW,SSAW pipes),steel casing and tubing pipes more than 30 years,we produce the pipe products in different standards such as ASTM A106,ASTM A53,ASTM A312,ASTM A333,ASTM A335,ASTM A315,API 5L,API 5CT,EN 10217,JIS G3444,etc.We also can supply butt welding pipe fittings,forged steel pipes and forged flanges,the materials contain carbon steel,stainless steel,alloy steel,if you want to know more about our piping products,please email us:sales@haihaogroup.com

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