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Resistance Welded Pipe ERW

Resistance welded pipe ERW is formed by hot rolled coil through forming machine. The skin effect and proximity effect of the high frequency current are used to heat and melt the edges of the tube blank.

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Product Description

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Product Description

ERW (Electrical Resistance Welding) pipes are manufactured by cold forming of steel coil into a round cylindrical shape and are used in various engineering purposes. They are round pipes welded from steel plates with longitudinal welds. Pressure welding is carried out under the action of squeeze rollers. The production process of welded steel pipes is simple, the production efficiency is high, the varieties and specifications are many, and the equipment is few, but the general strength is lower than that of seamless steel pipes. ERW pipes are commonly used to transport oil, natural gas and other vapor-liquid objects, and can meet various requirements of high and low pressure.

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Product Parameters

PRODUCT NAME	Resistance Welded Pipe ERW
STANDARD	EN/DIN/JIS/ASTM/BS/ASME/AISI etc.
OUTER DIAMETER	Seamless : 1/4"-36"	Welded:21.3mm-3620mm
	Round Tube : 1/2"-10"	Square Tube/Rectangular Tube:15x15mm-400x600mm
WALL THICKNESS	Seamless : 1.25mm-50mm	Welded: 1.65mm-65mm
TECHNIQUE	Hot rolled (HR)or Cold rolled (CR)
GRADES	10# 20# 35#45# 50# 60#Q345B Q345C Q345D Q345E,Q235B Q235R Q355B ST12 ST37 ST52
LENGTH	3-12 meters, Support customization
SURFACE PROCESS	Bright,Polished,Black
SERVICES	Machining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc.

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Product Material

STANDARD	MATERIAL
API 5L	PSL1/PSL2Gr.A, Gr.B, X42, X46, X52, X56, X60,X65,X70
ASTM	A53 G R.A, G R.B
EN	S275,S275JR, S355JRH,S355J2H
GB	Q195,Q215,Q235,Q345,L175,L210,L245,L320,L360-L555