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Girgaon, Mumbai - 400004
Stainless Steel 304L Seamless Tubes Manufacturer in India
What Are Stainless Steel 304L Seamless Tubes?
Stainless Steel 304L Seamless Tubes are low-carbon austenitic stainless steel tubes manufactured without a welded seam for applications requiring dependable corrosion resistance, good formability and reliable mechanical performance. Grade 304L is identified by UNS S30403 and is a low-carbon variation of the widely used 304 stainless steel grade.
The reduced carbon content of Stainless Steel 304L helps minimize chromium carbide precipitation during welding and fabrication, making the grade particularly suitable for welded and heat-affected applications. Its chromium and nickel content provides resistance to atmospheric corrosion, moisture and many common industrial environments.
Stainless Steel 304L Seamless Tubes can be manufactured and supplied according to applicable ASTM and ASME specifications. ASTM A213 and ASME SA213 are commonly associated with seamless austenitic stainless steel tubes for boiler, superheater and heat-exchanger applications, while other specifications may apply depending on the intended service and product requirements.
These tubes are used in chemical processing, food processing, pharmaceutical equipment, heat exchangers, water treatment, petrochemical systems, architectural applications and general industrial equipment. Their low-carbon chemistry, corrosion resistance and seamless construction make them suitable for applications where fabrication reliability and material consistency are important.
Kamal Steels is a Manufacturer and Stockist of Stainless Steel 304L Seamless Tubes, providing tubes in different outside diameters, wall thicknesses, lengths and finishes for domestic and international requirements. Material certification and inspection documentation can be supplied according to customer specifications.
Table of Contents
- Stainless Steel 304L Seamless Tube Specifications
- Stainless Steel 304L Seamless Tube Size Chart
- Stainless Steel 304L Seamless Tube Standards
- Stainless Steel 304L Seamless Tube Features
- Stainless Steel 304L Chemical Composition
- Stainless Steel 304L Mechanical Properties
- Stainless Steel 304L Seamless Tube Applications
- Industries Using Stainless Steel 304L Seamless Tubes
- Frequently Asked Questions
Stainless Steel 304L Seamless Tube Specifications
| Specification | Stainless Steel 304L Seamless Tubes |
|---|---|
| Material | Stainless Steel |
| Grade | 304L |
| UNS | S30403 |
| Tube Type | Seamless |
| ASTM Standard | ASTM A213, Applicable ASTM Specifications |
| ASME Standard | ASME SA213, Applicable ASME Specifications |
| Outside Diameter | As per requirement |
| Wall Thickness | As per requirement |
| Schedule | As required |
| Length | Random, Fixed or Customized |
| Finish | Annealed, Pickled, Bright Annealed, Polished or As required |
| Form | Round Tube |
Stainless Steel 304L Seamless Tube Size Chart
Stainless Steel 304L Seamless Tubes are available in different tube diameters and wall thicknesses to suit heat-transfer, process, fluid-handling and general engineering 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 Seamless Tube Standards
| Standard | Application / Product Requirement |
|---|---|
| ASTM A213 | Seamless ferritic and austenitic alloy-steel boiler, superheater and heat-exchanger tubes |
| ASTM A269 | Austenitic stainless steel tubing for general corrosion-resisting service, where applicable |
| ASME SA213 | Applicable seamless ferritic and austenitic alloy-steel tubing requirements |
| ASME SA269 | Applicable austenitic stainless steel tubing requirements for general service, where applicable |
Stainless Steel 304L Seamless Tube Features
- Low-carbon austenitic stainless steel composition
- Good resistance to general corrosion
- Reduced risk of sensitization during welding
- Excellent formability and fabrication characteristics
- Good toughness across a wide range of temperatures
- Suitable for various industrial process environments
- Good resistance to atmospheric and moisture-related corrosion
- Non-magnetic in the annealed condition
- Seamless construction for demanding applications
- Available in multiple dimensions and finishes
Stainless Steel 304L Chemical Composition
| 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. |
| Iron | Balance |
Stainless Steel 304L Mechanical Properties
| Property | Minimum Requirement |
|---|---|
| Tensile Strength | 485 MPa min. |
| Yield Strength | 170 MPa min. |
| Elongation | 35% min. |
| Density | Approx. 8.0 g/cm³ |
Note: Mechanical requirements should be confirmed against the applicable ASTM or ASME product specification and material test certificate.
Stainless Steel 304L Seamless Tube Applications
Chemical Processing
Used for process equipment and fluid-handling systems requiring corrosion-resistant tubing.
Pharmaceutical Equipment
Applied in equipment and tubing systems where cleanability and corrosion resistance are important.
Food Processing
Suitable for hygienic process lines, fluid transfer systems and food-processing equipment.
Heat Exchangers
Used in suitable heat-transfer systems requiring corrosion-resistant stainless steel tubing.
Water Treatment
Applied in selected water-handling and treatment equipment exposed to moisture and corrosive conditions.
General Engineering
Used for fabricated equipment, machinery and industrial systems requiring 304L tubing.
Industries Using Stainless Steel 304L Seamless Tubes
Chemical Industry
Uses 304L seamless tubing for selected process and fluid-handling applications.
Pharmaceutical Industry
Selected for hygienic equipment and process systems requiring corrosion-resistant materials.
Food Industry
Applied in food-processing equipment and sanitary fluid-transfer systems.
Petrochemical Industry
Used in appropriate process equipment and utility systems requiring stainless steel tubing.
Water Treatment Industry
Applied in selected water-processing and fluid-handling equipment.
Engineering Industry
Used for machinery, fabricated equipment and general industrial applications.
Frequently Asked Questions
Stainless Steel 304L Seamless Tubes are low-carbon, weld-free stainless steel tubes manufactured from Stainless Steel 304L (UNS S30403 / WNR 1.4307). They provide excellent corrosion resistance, superior weldability, and outstanding resistance to intergranular corrosion.
Our Stainless Steel 304L Seamless Tubes are manufactured according to ASTM A213, ASTM A269, ASTM A249, ASME SA213, and ASME SA269 international standards.
SS 304L contains lower carbon than SS 304, minimizing carbide precipitation during welding and providing improved resistance to intergranular corrosion after fabrication.
They are widely used in pharmaceutical plants, food and beverage processing, dairy industries, chemical processing, water treatment systems, heat exchangers, instrumentation, cryogenic applications, and oil & gas industries.
SS 304L Seamless Tubes are available in various outside diameters, wall thicknesses, surface finishes, schedules, and custom cut lengths to meet diverse industrial requirements.
Each tube undergoes Hydrostatic Testing, Ultrasonic Testing (UT), Eddy Current Testing (ECT), Positive Material Identification (PMI), Chemical Analysis, Mechanical Testing, Flattening Test, Flaring Test, Intergranular Corrosion (IGC) Testing, and Dimensional Inspection.
Yes. The low carbon content of Stainless Steel 304L significantly reduces carbide precipitation during welding, making it ideal for fabricated equipment and welded piping systems.
Yes. Every shipment includes EN 10204 3.1 Mill Test Certificates, inspection reports, complete material traceability, and third-party inspection certificates upon request.
Yes. Kamal Steels exports Stainless Steel 304L Seamless Tubes worldwide with export-standard packaging, complete documentation, and timely international delivery.
Kamal Steels offers ASTM-compliant Stainless Steel 304L Seamless Tubes with ready stock, certified quality, competitive pricing, strict quality control, export-standard packaging, complete documentation, and dependable worldwide delivery for critical industrial applications.