Electric resistance welded steel pipes, or ERW pipes, are made by forming flat steel strips into a cylindrical shape, then welding the edges together using electric resistance. This process results in a strong and durable welded seam.
ERW steel pipes are widely used in various applications such as water and gas pipelines, structural support, and in the transportation of fluids.
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Heavy gauge pipes are steel pipes with a thicker wall thickness, making them sturdy and suitable for applications that require additional strength and durability. These pipes are commonly used in industries where high-pressure or heavy-duty conditions exist, such as in oil and gas pipelines, structural engineering, and industrial settings where robust materials are essential for withstanding substantial loads and pressures.
Light gauge pipes have thinner wall thickness compared to heavy gauge pipes, making them suitable for applications where a lighter and more economical material is sufficient. They are commonly used in plumbing, irrigation, and certain structural applications where the load-bearing requirements are not as demanding. Light gauge pipes are also often more cost-effective and easier to handle in situations where heavy-duty strength is not a primary concern.
ERW pipes are available in three PNS-certified gauge ratings covering 1/2″ to 24″ nominal diameter — with OD, wall thickness, mass, and weight per 6m verified against PNS 26:2018, PNS 2145:2020, and ASTM A53. Download the 2026 Product Handbook for the complete multi-gauge reference.
Access OD, wall thickness, mass per meter, and weight per 6m for all three ERW gauge ratings — Heavy Gauge, Light Gauge, and Lightweight — per PNS 26:2018 and PNS 2145:2020, covering 1/2" to 24" nominal diameter.
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Common Questions
ERW pipes, seamless pipes, and spiral pipes differ mainly in manufacturing and applications.
Common finishes for ERW pipes include black (mill finish), galvanized (zinc-coated), and painted. These finishes help protect the pipes from corrosion, extend their lifespan, and suit different structural or industrial applications.
ERW pipes are strong and durable, with consistent wall thickness and welded seams that provide reliable structural integrity. They are suitable for medium-pressure applications, construction, and industrial projects, offering good resistance to stress and wear over time.
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