ERW Tubes
An ERW Tube (Electric Resistance Welded Tube) is a cold-formed steel tube produced by continuously forming mild steel or carbon steel strips into a cylindrical, square, or rectangular shape and welding the edges through high-frequency ERW welding. ERW Tubes are known for excellent dimensional accuracy, smooth finish, strong weld seam, and cost-effectiveness—making them suitable for structural applications, fabrication, engineering, automotive, furniture, and general-purpose usage.These ERW steel tubes are used extensively in construction, mechanical engineering, frames, supports, conveyors, gates, and industrial manufacturing due to their strength, versatility, and uniformity. Their high weld integrity and smooth surface make ERW Tube a preferred choice for lightweight to medium-duty structural works.
About Our ERW Tubes
We are your reliable source for premium-quality MS ERW Tubes and Carbon Steel ERW Tubes, meticulously sourced from reputed mills and guaranteed to comply with leading international standards such as IS 3074, IS 4923, IS 1161, ASTM A513, and EN specifications. As trusted stockists and distributors, we are committed to providing products that exemplify excellence through their accurate dimensions, uniform weld strength, and smooth internal and external surfaces, all contributing to superior mechanical performance. This combination of quality and precision makes our ERW tubes ideally suited for a diverse range of applications, including fabrication, furniture, automotive components, structural works, and various other demanding industrial and engineering projects
Key Features
- •Excellent weld integrity (high-frequency ERW welded seam)
- •Smooth internal surface for improved flow and finish
- •High mechanical strength and stability
- •Lightweight yet durable
- •Corrosion-resistant with optional protective coatings
- •Available in Round, Square & Rectangular forms
- •Cost-effective alternative to seamless tubes
- •Accurate dimensions and tight tolerances
Applications
- •Structural engineering & fabrication
- •Furniture manufacturing
- •Automotive chassis & components
- •Conveyor rollers
- •Gates, grills & fencing
- •Support frames & mechanical structures
Size & Thickness Range
| diameter | thickness | use | finish |
|---|---|---|---|
| 12mm – 50mm | 0.8mm – 2.5mm | Furniture, general engineering, light fabrication | Black / Oiled |
| 40mm – 150mm | 1.2mm – 5.0mm | Structural frames, gates, support structures | Black / Varnished |
| 100mm – 300mm | 2.0mm – 8.0mm | Heavy fabrication, machinery, industrial applications | Black / Customized |
Manufacturing Process
Our ERW steel tubes are crafted for superior performance in the most demanding applications.The process begins with high-grade steel strips, the foundation of our carbon steel ERW pipes. These strips are precision-formed through rollers into cylindrical, square, or rectangular shapes. The edges are then meticulously prepared, a critical step that ensures the dimensional accuracy and weld consistency we are known for.The core of the technology is High-Frequency Welding (HFIW).This results in a seamless-quality weld that is both strong and uniform.Following welding, the tubes undergo precise sizing and straightening to achieve exact outer diameters and wall thicknesses, confirming their status as precision ERW tubes.As leading ERW pipe suppliers and MS ERW tube stockists, we are your direct source for quality. We supply a comprehensive range of industrial ERW tubes, including round ERW pipes and square ERW steel tubes, compliant with international standards.
ERW Tubes vs Seamless Tubes
| Aspect | ERW Tubes | Seamless Tubes |
|---|---|---|
| Production | Welded seam | No weld |
| Cost | More economical | Expensive |
| Dimensional Accuracy | Excellent | Good |
| Strength | Suitable for most structural uses | High-pressure applications |
| Applications | Fabrication, automotive, furniture, structures | Boilers, high-pressure lines |
Quality Tests Performed
- Weld Strength Test
- Hydrostatic Pressure Test
- Dimensional Accuracy Test
- Flattening & Drift Expansion Test
- Tensile & Hardness Testing
- Surface Finish Inspection
- Straightness & Thickness Test
- Non-destructive Testing (NDT)
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