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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.

carbon steel pipe supplier

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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

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Scope of Application

Used for ERW line pipe, ERW casing, ERW structural pipe, for high pressure and high temperature, etc.

carbon steel pipe

Product Advantages

PRODUCTION ADVANTAGES

Application

FAQ

FAQs

Q1:Can you send samples?

A:Of course, we can provide customers with free samples and express shipping service to all over of the world.
Q2:What product information do I need to provide?

A:Please kindly provide the grade, width, thickness, surface treatment requirement should you have and quantities you need to purchase.
Q3:What ports of shipment are there?

A:Sure,we have agent to arrange the shipment, we will do it together with you.
Q4:What ports of shipment are there?

A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can specify other ports according to your needs.
Q5：Do you provide custom made Products service?

A:Prices various according to periodic price changes of raw materials.
Q6:What are the certifications for your products?

A:We have ISO 9001, MTC, third parties’ inspections are all available such BV ect.
Q7:Can I go to your factory to visit?

A:Of course, we welcome customers from all over the world to visit our factory.
Q8:How long does your delivery time take?

A:In general, our delivery time is within 7-15 days, and may be longer if the quantity is extremely large or special circumstances occur.
Q9:Does the product have quality inspection before loading?

A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed and customers can appoint third parties to inspect the products before loading too.
Q10:How to pack the products?

A: Standard export sea-worthy packaging, the inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It can effectively protect products from corrosion and various climate changes during ocean transportation.