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ERW Round Steel Pipe

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ERW Round Steel Pipe

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.

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.

ERW Round Steel Pipe Specification

Product NameERW Round Steel Pipe
StandardASTM A106, ASTM A53, BS1387, EN 10217, EN 10219, EN10035, JIS G3444, JIS G3452
GradeGR.A, GR.B, GR.1-GR.3, Q195-Q345, C250, C350, C250L0, STK500, S235JOH-S355JOH, S235GT
TypesMechanical Pipe, Tubing and Casing, Roller Pipe, Drilling Pipe, Structural Applications
Out Diameter10-170mm
Thickness0.5mm ~ 8mm
Length0.5-12M
Pipe CoatingOiling, Lacquering, Hot-Dip Galvanizing, Powder Painted, Electro-Galvanized
Pipe End TypeSquare End, Bevelled End, Threaded End, Grooved End, Shouldered End

Application Of Carbon Steel ERW Round Pipe

Structural Purpose

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

Withstand extreme temperatures and pressures. Widely used in building support columns, building frames with long service life (40-50 years).

Steel Fence

Easy to cut, bend and connect. Galvanized for anti-corrosion, suitable for long-term outdoor use in fencing systems.

ERW Steel Pipe Manufacturing Process

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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 pipesMore expensive than welded pipe
It has welding seam on tubeNo welding seam on the tube
Main raw material: steel coils and stripsMade of solid round bars
High production efficiencyHigh OD and ID tolerance
Thickness tolerance is moderately preciseCan bear high-pressure
Used for low/medium pressure applicationsThickness tolerance is stable and accurate
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