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Girgaon, Mumbai - 400004
Stainless Steel 316L Welded Tubes Manufacturer in India
What Are Stainless Steel 316L Welded Tubes?
Stainless Steel 316L Welded Tubes are low-carbon austenitic stainless steel tubes containing chromium, nickel and molybdenum. Grade 316L, identified by UNS S31603, is widely used where excellent corrosion resistance, good weldability and resistance to chloride-containing environments are required.
The low carbon content of Stainless Steel 316L reduces the risk of carbide precipitation during welding, making the grade suitable for welded fabrication and components where corrosion resistance around welded areas is important. Its molybdenum content also provides improved resistance to pitting and crevice corrosion compared with standard 304 stainless steel.
Stainless Steel 316L Welded Tubes can be manufactured and supplied according to applicable ASTM and ASME specifications, including ASTM A249 and other applicable standards depending on the tube type, dimensions and intended service. Different wall thicknesses, outside diameters, lengths and finishes can be supplied according to project requirements.
These tubes are commonly used in chemical processing, pharmaceutical equipment, food processing, marine systems, heat exchangers, petrochemical equipment and water treatment applications. Their combination of corrosion resistance and weldability makes them suitable for demanding industrial environments.
Kamal Steels is a reliable Stainless Steel 316L Welded Tubes Manufacturer and Stockist in India, supplying tubes in different sizes, wall thicknesses, lengths and finishes. We cater to domestic and international requirements with suitable MTC, inspection documentation and export packaging.
Table of Contents
- Stainless Steel 316L Welded Tube Specifications
- Stainless Steel 316L Welded Tube Size Chart
- Stainless Steel 316L Welded Tube Standards
- Stainless Steel 316L Welded Tube Features
- Stainless Steel 316L Chemical Composition
- Stainless Steel 316L Mechanical Properties
- Stainless Steel 316L Welded Tube Applications
- Industries Using Stainless Steel 316L Welded Tubes
- Frequently Asked Questions
Stainless Steel 316L Welded Tube Specifications
Stainless Steel 316L Welded Tubes are supplied in different dimensions and product conditions according to applicable standards and customer requirements.
| Specification | Stainless Steel 316L Welded Tubes |
|---|---|
| Material | Stainless Steel |
| Grade | 316L |
| UNS | S31603 |
| Tube Type | Welded |
| ASTM Standard | ASTM A249 / Applicable ASTM Specification |
| ASME Standard | ASME SA249 / Applicable ASME Specification |
| 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 316L Welded Tube Size Chart
Stainless Steel 316L Welded Tubes are available in various outside diameters and wall thicknesses for process, fabrication and industrial applications. Customized sizes and lengths can also be supplied according to customer 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 316L Welded Tube Standards
Stainless Steel 316L Welded Tubes can be supplied according to applicable ASTM and ASME requirements based on product form, dimensions and service conditions.
| Standard | Application / Product Requirement |
|---|---|
| ASTM A249 | Welded austenitic stainless steel tubes for heat exchangers, boilers and condensers |
| ASTM A269 | Seamless and welded austenitic stainless steel tubing for general corrosion-resisting and low- or high-temperature service |
| ASME SA249 | Applicable welded austenitic stainless steel tubing requirements |
| ASME SA269 | Applicable austenitic stainless steel tubing requirements for general service |
Stainless Steel 316L Welded Tube Features
Stainless Steel 316L is valued for its low carbon content, molybdenum-enhanced corrosion resistance and suitability for welded construction.
- Excellent corrosion resistance
- Improved resistance to pitting and crevice corrosion
- Good resistance to chloride-containing environments
- Low carbon content for welded applications
- Excellent weldability
- Good toughness and ductility
- Suitable for marine and coastal environments
- Good resistance to many chemical solutions
- Suitable for hygienic processing equipment
- Available in different sizes, wall thicknesses and finishes
Stainless Steel 316L Chemical Composition
The chemical composition of Stainless Steel 316L combines chromium, nickel and molybdenum with a controlled low carbon level. This composition contributes to corrosion resistance and supports welded fabrication.
| Element | Composition (%) |
|---|---|
| Chromium | 16.0 - 18.0 |
| Nickel | 10.0 - 14.0 |
| Molybdenum | 2.0 - 3.0 |
| Carbon | 0.030 max. |
| Manganese | 2.00 max. |
| Silicon | 1.00 max. |
| Phosphorus | 0.045 max. |
| Sulfur | 0.030 max. |
| Iron | Balance |
Stainless Steel 316L Mechanical Properties
Stainless Steel 316L provides a useful combination of strength, ductility and corrosion resistance. Mechanical requirements depend on the applicable specification, product dimensions and material condition.
| Property | Minimum Requirement |
|---|---|
| Tensile Strength | 485 MPa min. |
| Yield Strength | 170 MPa min. |
| Elongation | 40% min. |
| Density | Approx. 8.0 g/cm³ |
Note: Mechanical properties may vary according to product form, dimensions, heat treatment and applicable specification. Final values should be confirmed from the relevant material test certificate.
Stainless Steel 316L Welded Tube Applications
Stainless Steel 316L Welded Tubes are selected for applications where corrosion resistance and reliable welded construction are important.
Chemical Processing
Used in process equipment and tubular systems exposed to corrosive chemicals and process fluids.
Pharmaceutical Equipment
Used in hygienic process equipment where corrosion resistance, cleanability and welded construction are required.
Marine Systems
Used in marine and coastal equipment exposed to chloride-containing environments.
Food Processing
Used in processing and fluid-handling systems where hygiene and corrosion resistance are important.
Heat Exchangers
Used in heat-transfer equipment requiring durable corrosion-resistant tubing.
Water Treatment
Used in selected filtration, treatment and fluid-handling systems exposed to corrosive conditions.
Industries Using Stainless Steel 316L Welded Tubes
Stainless Steel 316L Welded Tubes are supplied to industries requiring corrosion-resistant and weldable stainless steel tubing for process, hygienic and fluid-handling applications.
Chemical Industry
Used in process equipment and piping systems handling corrosive chemicals.
Pharmaceutical Industry
Used in hygienic equipment and process systems requiring corrosion-resistant materials.
Marine Industry
Used in equipment and tubular systems exposed to marine atmospheres and chloride conditions.
Food Processing Industry
Used in food and beverage processing equipment where hygiene and corrosion resistance are required.
Petrochemical Industry
Used in selected process equipment and fluid-handling applications.
Water Treatment Industry
Used in selected treatment and fluid-handling equipment requiring corrosion-resistant tubing.
Frequently Asked Questions
Stainless Steel 316L Welded Tubes are low-carbon molybdenum-bearing austenitic stainless steel tubes manufactured using advanced welding technology. They provide excellent corrosion resistance and superior weldability, especially in chloride-rich and corrosive environments.
Our Stainless Steel 316L 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 resistance to pitting, crevice corrosion, chloride attack, and intergranular corrosion after welding while providing excellent weldability, hygiene, and long service life.
They are widely used in pharmaceutical manufacturing, food and beverage processing, dairy plants, marine engineering, chemical processing plants, petrochemical facilities, heat exchangers, and water treatment systems.
Stainless Steel 316L contains lower carbon than SS 316, reducing carbide precipitation during welding and providing improved resistance to intergranular corrosion without significantly affecting corrosion resistance.
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 316L Welded Tubes in various diameters, wall thicknesses, surface finishes, standard lengths, and custom-cut lengths according to customer specifications.
Yes. We export Stainless Steel 316L Welded Tubes worldwide with export-standard packaging, complete documentation, and timely international delivery.
Kamal Steels offers ASTM-compliant Stainless Steel 316L Welded Tubes with ready stock, certified quality, competitive pricing, stringent quality control, export-standard packaging, complete documentation, and dependable worldwide delivery for critical corrosion-resistant industrial applications.