Home > Welded Tubes > Carbon Steel Welded Tubes
INOX STEEL INDIA is one of India’s leading manufacturers of Carbon Steel Welded Tubes, supplying ERW / HFIW / HFW tubes to infrastructure, fabrication, engineering, automotive, construction, power and general industrial users.
Our tubes are manufactured from high-quality carbon steel coils using High-Frequency Induction Welding (ERW / HFIW) and meet major national & international standards including IS 1239, IS 1161, EN 10217-1, EN 10255 and ASTM A53.
We produce round, square, rectangular and heavy-wall carbon steel welded tubes for structural and pressure applications.
Our Carbon Steel Welded Tubes are known for high weld integrity, uniform wall thickness, strong mechanical properties, accurate dimensions, excellent workability and cost efficiency.
Carbon Steel Welded Tubes are manufactured by forming carbon steel strip into a tubular shape and welding the seam using high-frequency induction welding (ERW / HFIW).
Also known as:
High-quality HR/CR carbon steel coils are inspected, slitted and edge-trimmed.
Steel strips are passed through roll-formers to create a tubular shape.
External bead removed; internal bead optional based on specification.
Normalising improves grain structure, mechanical strength and weld uniformity.
Achieves tight OD, thickness and shape tolerances.
Hydrostatic and Eddy Current testing ensure weld strength and leak-proof performance.
| Feature | Welded (ERW / HFIW) | Seamless |
| Price | More economical | Much higher |
| Sizes | Excellent for small-to-medium sizes | Better for very high pressure |
| Weld | Solid-state seam | No seam |
| Availability | Widely available | Limited sizes |
| Applications | Structural, general engineering | High-pressure lines |
70–80% of carbon steel applications use welded tubes due to cost-performance advantage.
| Standard | Usage | Strength | Applications |
| IS 1239 | General purpose | Medium | Water, air lines |
| IS 1161 (YSt 210/240/310) | Structural | High | PEB, fabrication |
| EN 10217-1 | Pressure tubing | Medium-high | Boilers, pressure systems |
| OD (mm) | Wall Thickness (mm) | Length |
| 12.7 – 25.4 | 0.8 – 2.0 | 6 m |
| 25.4 – 76.2 | 1.0 – 4.0 | 6 m |
| 76.2 – 168 | 2.0 – 6.0 | 6 m |
| 168 – 323.9 | 3.0 – 12.0 | 6 m |
| Type | Usage |
| Black (Mill Finish) | General engineering |
| Painted / Varnish | Corrosion protection |
| Primer Coated | Structural construction |
| Hot-Dip Galvanised | Outdoor piping |
| Product | INR/Kg | USD/Kg |
| IS 1239 Welded Tubes | ₹65 – ₹80 | $0.80 – $1.00 |
| IS 1161 Structural Tubes | ₹70 – ₹110 | $0.90 – $1.40 |
| EN 10217-1 Tubes | ₹85 – ₹120 | $1.00 – $1.50 |
| GI Welded Tubes | ₹95 – ₹140 | $1.20 – $1.80 |
Used in structure fabrication, water lines, automotive, scaffolding, and general engineering. Yes — carbon steel is highly weldable using MIG, TIG, SMAW, or flux-core welding. Yes — it requires 309L welding wire for proper metallurgical bonding. IS 1239 • IS 1161 • EN 10217-1 • EN 10255 • ASTM A53. Yes — up to 12 mm thick and sizes up to 300×150 mm. High-Frequency Induction Welding (ERW/HFIW) is used. What are carbon steel welded tubes used for?
Can you weld carbon steel tubes?
Can you weld stainless steel to carbon steel?
What standards do your tubes meet?
Do you supply heavy-wall rectangular tubes?
What type of welding is used to manufacture CS tubes?