ERW Round Steel Pipe

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ERW Round Steel Pipe

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ERW Round Steel Pipe

Carbon Steel ERW Round Pipe Factory And Manufacturer In China    

ERW (Electric Resistance Welded) pipes are made by cold forming a steel coil or strip.    


Material: The base material of ERW steel pipes is usually carbon steel or low alloy steel. Common steel grades include Q235, Q345 in China, and corresponding international standards such as ASTM A500, ASTM A106.    


The surface of ERW steel pipes is relatively smooth. They can be further processed by galvanizing, painting or other surface treatments to improve corrosion resistance and appearance.    

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ERW Round Steel Pipe Specification    

• Name: ERW Round Steel Pipe    

• Standard:  ASTM A106, ASTM A53,  BS1387, EN 10217, EN 10219, EN10035, JIS G3444, JIS G3452    

• Grade:GR.A, GR.B, GR.1-GR.3, Q195-Q345, C250, C350, C250L0, STK500,  S235JOH-S355JOH, S235GT    

• Types: Mechanical Pipe, Tubing and Casing, Roller Pipe, Drilling Pipe, Structural Applications    

• Out diameter: 10-170mm    

• Thickness:0.5mm ~8mm    

• Length: 0.5-12M    

• Pipe Coating: Oiling, Lacquering, Hot-Dip Galvanizing, Powder Painted, Electro-Galvanized    

• Pipe End Type: Square End, Bevelled End, Threaded End, Grooved End, Shouldered End  


Application Of Carbon Steel ERW Round Pipe    

Structural Purpose

ERW steel pipes are used as structural members, such as in the construction of scaffolds, steel frameworks of buildings,bridges and steel furniture.They provide good strength and stability.

Fitness Equipment

ERW steel pipes have high strength and good toughness, being able to withstand large forces during fitness exercises. They are often used in the main frames of fitness equipment like treadmills and weightlifting racks.

Building Structure

Due to its flexibility, versatility and toughness,low carbon steel pipe can withstand extreme temperatures and pressures.It is widely used in building support columns, building frames,with a zinc coating that provides corrosion resistance and a long service life of 40 to 50 years.

Steel Fence

ERW steel pipes are easy to cut, bend and connect, which can be processed and installed according to the actual needs of the site.The surface of ERW steel pipe can be galvanized and other anti-corrosion treatment, which can be used outdoors for a long time without being easily corroded and prolongs the service life of the steel fence.


ERW Steel Pipe Manufacturing Process


Welded Pipe VS. Seamless     

Welded pipes are generally more cost-effective to produce. The manufacturing process of welded pipes is relatively simple. They are made by bending a steel plate or strip into a tubular shape and then welding the seam, which requires less complex equipment and technology, resulting in lower production costs.  Due to the lower manufacturing cost, welded pipes are usually cheaper in the market. For projects with a large demand for pipes but not extremely high requirements for pipe performance, using welded pipes can significantly reduce material costs.    

Welded PipeSeamless Pipe
Cheaper option compared to seamless pipesExpensive than welded pipe
It has welding seam on tubeNo welding seam on the tube
The main raw material is steel coils and stripsMade of solid round bars
High production efficiencyWith high OD and ID tolerance
Thickness tolerance is moderately precise.Can bear high-pressure
Used for low/medium pressure applicationsThickness tolerance is stable and accurate


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