Welded Tubes Manufacturer
At Steel Icon Stainless Pvt. Ltd., we are a trusted manufacturer and global exporter of seamless tubes, delivering solutions for industries that demand precision, reliability, and superior strength. Our seamless tubes are crafted using cold drawn or hot rolled extrusion methods, ensuring tight dimensional tolerance, smooth internal finish, and high-pressure handling capabilities.
We manufacture seamless tubes in a wide range of stainless steel, carbon steel, alloy steel, and duplex grades, adhering to global standards such as ASTM, ASME, DIN, EN, and ISO. Our tubes are widely used in heat exchangers, boilers, condensers, instrumentation, hydraulic systems, oil & gas, power plants, and automotive sectors.
What Are Welded Tubes?
Welded tubes are made by rolling metal strips or coils and welding the edges together using electric resistance or fusion welding. These tubes are known for their cost-effectiveness, uniformity, and availability in long lengths, making them suitable for both low-pressure and high-temperature systems where a seamless structure isn’t mandatory.
They are ideal for general engineering, structural, decorative, and sanitary applications.
| Products |
|---|
|
Stainless Steel Bar |
|
Fasteners |
|
Forged Products |
|
Flanges |
|
Forged Fittings |
|
Stainless Steel Billets |
|
Round Corner Square Billets |
|
Stainless Steel Pipes |
|
Pipe Fittings |
|
Valve |
Product Specifications
| Property | Specification |
|---|---|
|
Material Grades |
SS 304, 316, 310, 321, Duplex, CS, MS, Alloys
|
|
Outer Diameter |
6 mm to 254 mm |
|
Wall Thickness |
0.5 mm to 12.7 mm |
|
Length |
Up to 12 meters / Cut-to-length available |
|
Manufacturing Process |
ERW, EFW, TIG Welded, Laser Welded |
|
Standards |
ASTM A269, ASTM A554, EN 10296, DIN 17457, ASME B36.19 |
Types of Welded Tubes
- ERW Tubes – Economical and commonly used in structural and mechanical systems
- EFW Tubes – Used in high-temperature applications like boilers and heat exchangers
- Polished Decorative Tubes – Ideal for architecture, interiors, and furniture
- Sanitary Welded Tubes – Designed for hygienic process systems in pharma and food industries
Available Grades
- Stainless Steel: 304, 304L, 316, 316L, 321, 347, 310
- Duplex Steel: UNS S31803, S32205
- Carbon & Mild Steel: ASTM A178, A214, IS 1239, IS 3589
- Alloy Steel: WP5, WP9, WP11, WP22, WP91
Chemical Composition (Typical for SS 304/316)
| Element | SS 304 (%) | SS 316 (%) |
|---|---|---|
|
Carbon (C) |
0.08 max |
0.08 max |
|
Chromium (Cr) |
18.0 – 20.0 |
16.0 – 18.0 |
|
Nickel (Ni) |
8.0 – 10.5 |
10.0 – 14.0 |
|
Molybdenum (Mo) |
— |
2.00 – 3.00 |
Mechanical Properties
| Property | SS 304 / SS 316 |
|---|---|
|
Tensile Strength |
515–750 MPa |
|
Yield Strength |
205–310 MPa |
|
Elongation (%) |
≥ 30% |
|
Hardness (HRB) |
≤ 95 |
Applications of Stainless Steel Tubes
Construction &
Infrastructure
Marine &
Offshore
Automotive &
Transportation
Manufacturing &
Heavy Equipment
Chemical &
Pharmaceutical Plants
Oil & Gas
Food & Beverage
Industry
Benefits of Welded Tubes
- Lower cost compared to seamless tubes
- Available in longer continuous lengths
- Excellent surface finish and tight tolerances
- Custom weld types and polishing options
- Flexible designs for aesthetic and structural use
Frequently Asked Questions
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