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Girgaon, Mumbai - 400004
Stainless Steel 304L Welded Tubes Manufacturer in India
What Are Stainless Steel 304L Welded Tubes?
Stainless Steel 304L Welded Tubes are tubular products manufactured from low-carbon austenitic stainless steel by forming the material into a tubular shape and joining the edges through a controlled welding process. Grade 304L, identified by UNS S30403, offers a combination of good corrosion resistance, strength, durability, formability and excellent weldability.
Stainless Steel 304L Welded Tubes are commonly supplied according to applicable ASTM specifications such as ASTM A312, ASTM A249 and ASTM A269, depending on the tube application and product requirements. ASTM A312 is commonly used for stainless steel pipe requirements, while ASTM A249 and ASTM A269 cover applicable welded tubing requirements for heat exchangers, boilers, condensers and general service applications.
The low carbon content of 304L makes these welded tubes particularly suitable for fabrication involving welding, as it helps reduce the risk of carbide precipitation during welding. They provide good resistance to general corrosion and are widely used where reliable welded construction and corrosion-resistant performance are required.
These tubes are used in chemical processing, food processing, pharmaceutical equipment, water treatment, general engineering, architectural structures, industrial equipment and process systems. They are available in different outside diameters, wall thicknesses, schedules, lengths and finishes according to customer and project requirements.
Kamal Steels is a reliable Stainless Steel 304L Welded Tubes Manufacturer and Stockist in India, supplying welded tubes in different sizes, wall thicknesses, lengths and finishes. We cater to domestic and international requirements with suitable material test certificates, inspection documentation and export packaging.
Table of Contents
- Stainless Steel 304L Welded Tube Specifications
- Stainless Steel 304L Welded Tube Size Chart
- Stainless Steel 304L Welded Tube Standards
- Stainless Steel 304L Welded Tube Features
- Stainless Steel 304L Chemical Composition
- Stainless Steel 304L Mechanical Properties
- Stainless Steel 304L Welded Tube Applications
- Industries Using Stainless Steel 304L Welded Tubes
- Frequently Asked Questions
Stainless Steel 304L Welded Tube Specifications
Stainless Steel 304L Welded Tubes are supplied in different dimensions and product conditions according to applicable ASTM, ASME and customer requirements.
| Specification | Stainless Steel 304L Welded Tubes |
|---|---|
| Material | Stainless Steel |
| Grade | 304L |
| UNS | S30403 |
| Tube Type | Welded |
| ASTM Standard | ASTM A312 / ASTM A249 / ASTM A269, as applicable |
| ASME Standard | ASME SA312 / SA249 / SA269, as applicable |
| Outside Diameter | As per requirement |
| Wall Thickness | As per requirement |
| Schedule | As required |
| Length | Random, Fixed or Customized |
| Finish | Annealed, Pickled, Polished or As required |
Stainless Steel 304L Welded Tube Size Chart
Stainless Steel 304L Welded Tubes are available in different outside diameters and wall thicknesses for process, fabrication and industrial applications. Custom sizes and lengths can also be supplied according to project requirements.
| Tube Size | Outside Diameter (mm) | Wall Thickness | Length |
|---|---|---|---|
| 1/2" | 12.70 | As required | As required |
| 3/4" | 19.05 | As required | As required |
| 1" | 25.40 | As required | As required |
| 1-1/2" | 38.10 | As required | As required |
| 2" | 50.80 | As required | As required |
| 3" | 76.20 | As required | As required |
| 4" | 101.60 | As required | As required |
| 6" | 152.40 | As required | As required |
| 8" | 203.20 | As required | As required |
Stainless Steel 304L Welded Tube Standards
Stainless Steel 304L Welded Tubes can be supplied according to applicable ASTM and ASME specifications depending on the product form, application and customer requirements.
| Standard | Application / Product Requirement |
|---|---|
| ASTM A312 | Seamless, welded and heavily cold-worked austenitic stainless steel pipes |
| ASTM A249 | Welded austenitic stainless steel tubes for heat exchangers, boilers and condensers |
| ASTM A269 | Seamless and welded austenitic stainless steel tubing for general service |
| ASME SA312 | ASME specification for applicable stainless steel pipe requirements |
| ASME SA249 / SA269 | Applicable ASME specifications for welded and general-service tubing |
Stainless Steel 304L Welded Tube Features
Stainless Steel 304L is widely selected for welded tube applications because of its low carbon content, good weldability and balanced corrosion resistance and mechanical properties.
- Good general corrosion resistance
- Excellent weldability
- Low carbon content
- Reduced risk of carbide precipitation after welding
- Good formability
- Good strength and durability
- Good resistance to atmospheric corrosion
- Suitable for fabricated and welded structures
- Good surface finish
- Available in various sizes and wall thicknesses
Stainless Steel 304L Chemical Composition
Stainless Steel 304L contains chromium and nickel as its principal alloying elements, with a lower carbon content than Stainless Steel 304. This composition provides good corrosion resistance and improved suitability for welded fabrication.
| Element | Composition (%) |
|---|---|
| Chromium | 18.0 - 20.0 |
| Nickel | 8.0 - 12.0 |
| Carbon | 0.030 max. |
| Manganese | 2.00 max. |
| Silicon | 1.00 max. |
| Phosphorus | 0.045 max. |
| Sulfur | 0.030 max. |
| Nitrogen | 0.10 max. |
| Iron | Balance |
Stainless Steel 304L Mechanical Properties
Stainless Steel 304L offers a good combination of tensile strength, yield strength and elongation. Actual mechanical properties depend on product form, dimensions, heat treatment and applicable specification.
| Property | Minimum Requirement |
|---|---|
| Tensile Strength | 485 MPa min. |
| Yield Strength | 170 MPa min. |
| Elongation | 40% min. |
| Density | Approx. 8.0 g/cm³ |
Note: Mechanical requirements can vary according to product form, dimensions and applicable specification. Final values should be verified against the relevant material test certificate.
Stainless Steel 304L Welded Tube Applications
Stainless Steel 304L Welded Tubes are used in applications requiring good corrosion resistance, excellent weldability and reliable performance in fabricated tubular systems.
Chemical Processing
Used in process equipment and tubular systems requiring good resistance to common corrosive environments.
Food Processing
Used in food-processing equipment and sanitary systems requiring corrosion-resistant and cleanable surfaces.
Pharmaceutical
Used in selected pharmaceutical equipment and process systems requiring hygienic stainless steel tubing.
Water Treatment
Used in water-handling and treatment equipment where good corrosion resistance is required.
General Engineering
Used in fabricated equipment, machinery, tubular assemblies and industrial systems.
Architectural Applications
Used in railings, tubular structures, frames and architectural components requiring stainless steel durability.
Industries Using Stainless Steel 304L Welded Tubes
Kamal Steels supplies Stainless Steel 304L Welded Tubes to industries requiring corrosion-resistant and weldable stainless steel tubing for demanding fabrication and process applications.
Chemical Industry
Used in process equipment and tubular systems requiring good corrosion resistance and weldability.
Food & Beverage Industry
Used in processing equipment, sanitary systems and fluid-handling applications.
Pharmaceutical Industry
Used in process equipment and tubular systems requiring clean and corrosion-resistant materials.
Water Treatment Industry
Used in water-treatment equipment and general fluid-handling systems.
Engineering Industry
Used in fabricated equipment, machinery and industrial tubular assemblies.
Construction Industry
Used in architectural tubing, railings, frames and structural applications.
Frequently Asked Questions
Stainless Steel 304L Welded Tubes are low-carbon stainless steel tubes manufactured using advanced welding processes. They provide excellent corrosion resistance, superior weldability, and improved resistance to intergranular corrosion after welding.
Our Stainless Steel 304L Welded Tubes are manufactured according to ASTM A249, ASTM A269, ASTM A270, ASTM A554, ASME SA249, and ASME SA269 standards.
These welded tubes offer excellent corrosion resistance, outstanding weldability, low carbon content, improved resistance to intergranular corrosion, excellent formability, hygienic surfaces, and long service life.
They are widely used in food processing, dairy, beverage production, pharmaceutical manufacturing, chemical processing, heat exchangers, architectural structures, instrumentation systems, and general engineering applications.
Stainless Steel 304L contains a lower carbon content (maximum 0.03%), which minimizes carbide precipitation during welding and provides better resistance to intergranular corrosion compared to standard Stainless Steel 304.
Each tube undergoes PMI Testing, Chemical Analysis, Mechanical Testing, Hydrostatic Testing, Ultrasonic Testing (UT), Eddy Current Testing (ECT), Dimensional Inspection, Surface Finish Inspection, and Visual Inspection.
Yes. Every shipment includes EN 10204 3.1/3.2 Mill Test Certificates, inspection reports, complete material traceability, and third-party inspection certificates upon request.
Yes. Kamal Steels supplies Stainless Steel 304L Welded Tubes in various diameters, wall thicknesses, surface finishes, standard lengths, and custom-cut lengths according to customer specifications.
Yes. We export Stainless Steel 304L Welded Tubes worldwide with export-standard packaging, complete documentation, and timely international delivery.
Kamal Steels offers ASTM-compliant Stainless Steel 304L Welded Tubes with ready stock, certified quality, competitive pricing, stringent quality control, export-standard packaging, complete documentation, and dependable worldwide delivery for industrial and commercial applications.