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Cost-effective, strong and versatile tubing for structural, decorative & utility applications
ERW (Electric Resistance Welded) mild steel tubes manufactured under IS and BS standards are the backbone of modern construction, fabrication and utility systems. They offer the ideal balance of structural strength, dimensional accuracy, ease of fabrication, cost efficiency, and wide availability.
INOX STEEL INDIA supplies IS & BS compliant ERW tubes suitable for buildings, infrastructure, furniture, railings, industrial frames, and low to medium-pressure pipelines.
These tubes are manufactured by cold-forming steel strip and welding the edges using high-frequency electric resistance welding (ERW). The weld is continuous, uniform, and strong—making ERW tubes ideal for both load-bearing and aesthetic applications.
| Application Type | Standard Used | Key Focus |
| Decorative | IS 1239 / IS 4923 | Finish & appearance |
| Structural | IS 1161 / IS 4923 / EN 10219 | Strength & load |
| Utility | IS 1239 / BS 1387 | Leak-free service |
| Feature | ERW Tubes | Seamless Tubes |
| Cost | Lower | Higher |
| Availability | Wide sizes & shapes | Limited |
| Structural Use | Excellent | Good |
| Pressure Capability | Low–Medium | High |
| Decorative Use | Excellent | Rare |
Conclusion: ERW tubes are the preferred choice for structural, decorative and utility applications where ultra-high pressure is not required.
| OD (mm) | Wall Thickness | Common Use |
| 15 – 25 | 1.2 – 2.0 | Furniture, railings |
| 25 – 50 | 1.6 – 3.2 | Scaffolding, fencing |
| 50 – 100 | 2.0 – 4.0 | Structural & utility |
| 100 – 610 | 3.0 – 12.0 | Water, air, fire lines |
Lengths: 6 m / 12 m / Cut-to-length
| Section | Wall Thickness | Applications |
| 15×15 – 40×40 | 1.2 – 2.5 | Decorative frames |
| 50×50 – 100×100 | 2.0 – 4.0 | Structural frames |
| 120×120 – 300×300 | 3.0 – 10.0 | Buildings, sheds |
| Finish | Application |
| Black | General construction |
| Oiled | Temporary rust protection |
| Painted | Fabrication |
| Hot-Dip Galvanized | Outdoor & corrosion protection |
| Pre-Galvanized | Decorative use |
| Product | Price INR/kg |
| MS ERW Round Tubes | ₹ 58 – 78 |
| Square / Rectangular Sections | ₹ 60 – 82 |
| Galvanized ERW Tubes | ₹ 72 – 98 |
IS 1161 and IS 4923 hollow sections are designed for load-bearing structures. IS 1161 covers round structural tubes, while IS 4923 covers square & rectangular hollow sections. No. ERW MS tubes are for low to medium pressure. Seamless pipes are used for high pressure. Yes, hot-dip galvanized and pre-galvanized ERW tubes are available. Which ERW tubes are best for structural use?
What is the difference between IS 1161 and IS 4923?
Are ERW tubes suitable for high pressure?
Do you supply galvanized ERW tubes?