ERW Pipe
Electric Resistance Welded Pipe (ERW Pipe)
Electric Resistance Welded (ERW) pipe is one of the most widely used steel pipe types in the world, known for its accuracy, durability, and affordability. Manufactured using high-frequency electrical current to weld steel coils into cylindrical shapes, ERW steel pipes and ERW tubes are extensively used in applications ranging from oil & gas, construction, water pipelines, and mechanical engineering to automotive and agriculture.
At Emirerri Steel, we are among the trusted ERW pipe manufacturers and suppliers, delivering high-quality products that conform to international standards. Our ERW pipes combine reliability with cost efficiency, making them an ideal choice for large-scale infrastructure and industrial projects.
What is an ERW Pipe?
An ERW pipe is a type of welded pipe formed by cold-forming a steel coil into a cylindrical shape and welding the seam using electric resistance. Unlike traditional welding methods, ERW uses heat generated by electrical resistance to fuse the edges, ensuring a smooth and strong weld seam.
Key Features of ERW Pipes:
High dimensional accuracy
Smooth finish and uniform wall thickness
Strong weld seam with excellent bonding
Cost-effective compared to seamless pipes
Suitable for both low and medium-pressure applications
Manufacturing Process of ERW Steel Pipe
The ERW pipe manufacturing process ensures precision and efficiency:
Steel Coil Selection – High-quality hot-rolled or cold-rolled steel coils are chosen.
Forming – The coil is uncoiled, slit, and shaped into a cylindrical form.
Electric Resistance Welding – High-frequency electric current is applied to fuse the edges together without using filler material.
Weld Seam Treatment – The internal and external weld seams are trimmed and heat-treated for better strength.
Sizing & Shaping – Pipes pass through sizing mills for accurate dimensions.
Testing & Inspection – Hydrostatic testing, ultrasonic testing, and visual inspection ensure compliance with ASTM, API, EN, and ISO standards.
Types of ERW Pipes and Tubes
Depending on application and material, ERW pipes and ERW tubes are available in different categories:
Carbon Steel ERW Pipe
Widely used in water pipelines, structural applications, and engineering.
Stainless Steel ERW Pipe
Ideal for corrosive environments such as chemical plants and food processing industries.
Precision ERW Tube
Thin-walled tubes used in automotive components, bicycles, and machinery parts.
Galvanized ERW Pipe
Zinc-coated for enhanced corrosion resistance, commonly used in outdoor structures and water pipelines.
Applications of ERW Pipe & Tube
ERW steel pipes and tubes have versatile applications across industries:
Oil & Gas Industry – Pipelines for crude oil, natural gas, and petroleum products.
Construction & Infrastructure – Scaffolding, fencing, and structural frameworks.
Water & Sewage Systems – Safe transport of potable water and wastewater.
Automotive Industry – ERW tubes are used in axles, chassis, exhaust systems, and shock absorbers.
Mechanical Engineering – Machinery, bearings, and precision components.
Agriculture & Irrigation – Irrigation pipelines, drainage, and greenhouse structures.
Advantages of ERW Steel Pipe
ERW pipes are preferred over other pipe types due to their unique benefits:
High Dimensional Accuracy – Consistent wall thickness and surface finish.
Cost-Effective – More economical than seamless pipes while meeting structural needs.
Smooth Surface Finish – Ensures easy coating and painting.
Versatility – Available in different grades, sizes, and coatings.
Customizable – Can be manufactured as per client requirements.
Standards & Specifications
Our ERW pipes and tubes conform to international specifications:
ASTM / ASME – A53, A135, A178, A500
API – API 5L, API 5CT
EN / ISO – EN 10217, EN 10219
IS – IS 1239, IS 3589
Why Choose Emirerri Steel as Your ERW Pipe Manufacturer?
As leading ERW pipe manufacturers, we deliver products that stand for quality and performance.
Wide Range – ERW steel pipes and tubes in carbon, stainless, and galvanized steel.
Stringent Quality Control – Each pipe undergoes hydrostatic and non-destructive testing.
Customization – Pipes available in different diameters, thicknesses, and finishes.
Global Reach – Supplying to industries in oil & gas, construction, power, and automotive worldwide.
Competitive Pricing – Affordable without compromising quality.
On-Time Delivery – Large inventory and efficient logistics network.