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Girgaon, Mumbai - 400004
Stainless Steel 304 Welded Tubes Manufacturer in India
What Are Stainless Steel 304 Welded Tubes?
Stainless Steel 304 Welded Tubes are tubular products manufactured from austenitic stainless steel by forming the material into a tubular shape and joining the edges through a controlled welding process. Grade 304, identified by UNS S30400, offers a combination of good corrosion resistance, strength, durability, formability and weldability.
Stainless Steel 304 Welded Tubes are commonly supplied according to applicable ASTM specifications such as ASTM A312, ASTM A249 and ASTM A269, depending on the product form and application requirements. ASTM A312 covers applicable stainless steel pipe requirements, while ASTM A249 and ASTM A269 cover welded tubing requirements for heat exchangers, boilers, condensers and general service applications.
Stainless Steel 304 is widely selected for its good resistance to general and atmospheric corrosion, excellent fabrication properties and clean surface finish. These welded tubes are suitable for applications where reliable mechanical performance, corrosion resistance and ease of fabrication 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 304 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 304 Welded Tube Specifications
- Stainless Steel 304 Welded Tube Size Chart
- Stainless Steel 304 Welded Tube Standards
- Stainless Steel 304 Welded Tube Features
- Stainless Steel 304 Chemical Composition
- Stainless Steel 304 Mechanical Properties
- Stainless Steel 304 Welded Tube Applications
- Industries Using Stainless Steel 304 Welded Tubes
- Frequently Asked Questions
Stainless Steel 304 Welded Tube Specifications
Stainless Steel 304 Welded Tubes are available in different dimensions and product conditions according to applicable ASTM, ASME and customer requirements.
| Specification | Stainless Steel 304 Welded Tubes |
|---|---|
| Material | Stainless Steel |
| Grade | 304 |
| UNS | S30400 |
| 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 304 Welded Tube Size Chart
Stainless Steel 304 Welded Tubes are supplied in a range of outside diameters and wall thicknesses. Sizes can be selected according to pressure, flow, fabrication and installation 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 304 Welded Tube Standards
Stainless Steel 304 Welded Tubes can be supplied according to different ASTM and ASME specifications depending on the intended application and product form.
| 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 equivalent specification for applicable stainless steel pipe requirements |
| ASME SA249 / SA269 | Applicable ASME specifications for welded and general-service tubing |
Stainless Steel 304 Welded Tube Features
Stainless Steel 304 is widely selected for welded tube applications because of its balanced combination of corrosion resistance, fabrication properties and mechanical performance.
- Good general corrosion resistance
- Good resistance to atmospheric corrosion
- Good strength and durability
- Excellent formability
- Good weldability
- Good surface finish
- Suitable for a wide range of fabrication processes
- Good resistance to many food-processing environments
- Suitable for indoor and outdoor applications
- Available in a wide range of sizes and wall thicknesses
Stainless Steel 304 Chemical Composition
Stainless Steel 304 contains chromium and nickel as its principal alloying elements. This composition provides the grade with its characteristic corrosion resistance, formability and mechanical properties.
| Element | Composition (%) |
|---|---|
| Chromium | 18.0 - 20.0 |
| Nickel | 8.0 - 10.5 |
| Carbon | 0.08 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 304 Mechanical Properties
Stainless Steel 304 provides a useful combination of tensile strength, yield strength and elongation. Actual requirements may vary according to the applicable product specification and manufacturing condition.
| Property | Typical / Minimum Requirement |
|---|---|
| Tensile Strength | 515 MPa min. |
| Yield Strength | 205 MPa min. |
| Elongation | 35% min. |
| Density | Approx. 8.0 g/cm³ |
Note: Mechanical properties can vary according to product form, dimensions, heat treatment and applicable specification. Final values should be verified against the relevant material test certificate.
Stainless Steel 304 Welded Tube Applications
Stainless Steel 304 Welded Tubes are used in applications requiring good corrosion resistance, strength, fabrication properties and a clean surface finish.
Chemical Processing
Used in selected process piping, equipment and tubular systems requiring good resistance to common corrosive environments.
Food Processing
Used in food-processing equipment, sanitary systems and material-handling applications where cleanable stainless steel surfaces are required.
Pharmaceutical
Used in selected pharmaceutical equipment and process systems requiring corrosion resistance and hygienic surfaces.
Water Treatment
Used in water-handling equipment, treatment systems and general-purpose tubing applications.
General Engineering
Used for fabricated components, equipment, structural assemblies and industrial tubular systems.
Architectural Applications
Used in railings, decorative structures, tubular frames and other applications requiring a durable stainless steel finish.
Industries Using Stainless Steel 304 Welded Tubes
Kamal Steels supplies Stainless Steel 304 Welded Tubes for industries requiring reliable stainless steel tubing for fabrication, process and general industrial applications.
Chemical Industry
Used in equipment and process systems requiring good general corrosion resistance.
Food & Beverage Industry
Used in processing equipment, sanitary systems and material-handling applications.
Pharmaceutical Industry
Used in selected 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, industrial machinery and general engineering applications.
Construction Industry
Used in architectural tubing, railings, structural components and decorative applications.
Frequently Asked Questions
Stainless Steel 304 Welded Tubes are manufactured by forming stainless steel strips into tubular shapes and joining them using advanced welding processes. They offer excellent corrosion resistance, high strength, and outstanding fabrication properties.
Our Stainless Steel 304 Welded Tubes are manufactured according to ASTM A249, ASTM A269, ASTM A270, ASTM A554, ASME SA249, and ASME SA269 standards.
These welded tubes provide excellent corrosion resistance, superior weldability, good formability, hygienic surfaces, high durability, and cost-effective performance for industrial and commercial applications.
They are widely used in food processing plants, dairy industries, pharmaceutical manufacturing, beverage processing, heat exchangers, architectural structures, chemical processing, automotive components, and general engineering applications.
Yes. Stainless Steel 304 offers excellent corrosion resistance, a hygienic surface finish, and easy cleanability, making it suitable for food processing, dairy, beverage, and pharmaceutical industries.
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 304 Welded Tubes in various diameters, wall thicknesses, surface finishes, standard lengths, and custom-cut lengths according to customer specifications.
Yes. We export Stainless Steel 304 Welded Tubes worldwide with export-standard packaging, complete documentation, and timely international delivery.
Kamal Steels offers ASTM-compliant Stainless Steel 304 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.