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Girgaon, Mumbai - 400004
Stainless Steel 317/317L Welded Tubes Manufacturer in India
What Are Stainless Steel 317L Welded Tubes?
Stainless Steel 317L Welded Tubes are low-carbon austenitic stainless steel tubes containing chromium, nickel and a higher molybdenum content. Grade 317L, identified by UNS S31703, is designed for applications requiring enhanced corrosion resistance, particularly in aggressive chemical and chloride-containing environments.
The low carbon content of Stainless Steel 317L helps reduce the risk of carbide precipitation during welding, making the grade suitable for welded fabrication. Its higher molybdenum content provides improved resistance to pitting and crevice corrosion compared with conventional 304 stainless steel and offers enhanced resistance in many chemical environments.
Stainless Steel 317L Welded Tubes can be supplied according to applicable ASTM and ASME specifications, depending on the product type, dimensions and service requirements. These tubes are available in different outside diameters, wall thicknesses, lengths and finishes to meet industrial and project requirements.
Stainless Steel 317L Welded Tubes are commonly used in chemical processing, petrochemical equipment, pulp and paper plants, pharmaceutical equipment, heat exchangers and industrial fluid-handling systems. Their combination of corrosion resistance and weldability makes them suitable for demanding applications.
Kamal Steels is a reliable Stainless Steel 317L 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 317L Welded Tube Specifications
- Stainless Steel 317L Welded Tube Size Chart
- Stainless Steel 317L Welded Tube Standards
- Stainless Steel 317L Welded Tube Features
- Stainless Steel 317L Chemical Composition
- Stainless Steel 317L Mechanical Properties
- Stainless Steel 317L Welded Tube Applications
- Industries Using Stainless Steel 317L Welded Tubes
- Frequently Asked Questions
Stainless Steel 317L Welded Tube Specifications
Stainless Steel 317L Welded Tubes are supplied in different dimensions and material conditions according to applicable standards and customer requirements.
| Specification | Stainless Steel 317L Welded Tubes |
|---|---|
| Material | Stainless Steel |
| Grade | 317L |
| UNS | S31703 |
| 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 317L Welded Tube Size Chart
Stainless Steel 317L Welded Tubes are available in various outside diameters and wall thicknesses for process, fabrication and corrosive service applications. Customized dimensions 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 317L Welded Tube Standards
Stainless Steel 317L 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 service |
| ASME SA249 | Applicable welded austenitic stainless steel tubing requirements |
| ASME SA269 | Applicable austenitic stainless steel tubing requirements for general service |
Stainless Steel 317L Welded Tube Features
Stainless Steel 317L combines a higher molybdenum content with low carbon chemistry, providing enhanced corrosion resistance and suitability for welded construction.
- Excellent resistance to general corrosion
- Enhanced resistance to pitting and crevice corrosion
- Higher molybdenum content than Stainless Steel 316L
- Good resistance to aggressive chemical environments
- Good resistance to chloride-containing conditions
- Low carbon content for welded applications
- Excellent weldability
- Good strength and toughness
- Suitable for chemical processing environments
- Available in different sizes, wall thicknesses and finishes
Stainless Steel 317L Chemical Composition
The chemical composition of Stainless Steel 317L includes chromium, nickel and molybdenum, with a controlled low carbon level. The higher molybdenum content contributes to enhanced resistance against localized corrosion and aggressive chemical environments.
| Element | Composition (%) |
|---|---|
| Chromium | 18.0 - 20.0 |
| Nickel | 11.0 - 15.0 |
| Molybdenum | 3.0 - 4.0 |
| Carbon | 0.030 max. |
| Manganese | 2.00 max. |
| Silicon | 1.00 max. |
| Phosphorus | 0.045 max. |
| Sulfur | 0.030 max. |
| Iron | Balance |
Stainless Steel 317L Mechanical Properties
Stainless Steel 317L offers a combination of strength, ductility and enhanced corrosion resistance. Mechanical requirements depend on the applicable specification, product dimensions and material condition.
| Property | Minimum Requirement |
|---|---|
| Tensile Strength | 515 MPa min. |
| Yield Strength | 205 MPa min. |
| Elongation | 35% 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 317L Welded Tube Applications
Stainless Steel 317L Welded Tubes are selected for applications where enhanced corrosion resistance, low-carbon chemistry and reliable welded construction are required.
Chemical Processing
Used in process equipment and tubular systems exposed to aggressive chemicals and corrosive process fluids.
Petrochemical Equipment
Used in selected process equipment requiring resistance to demanding corrosive operating conditions.
Pulp and Paper
Used in equipment and process systems exposed to corrosive chemicals used in pulp and paper processing.
Pharmaceutical Equipment
Used in selected process equipment where corrosion resistance and welded fabrication are important.
Heat Exchangers
Used in heat-transfer equipment requiring corrosion-resistant tubular construction.
Fluid Handling
Used in industrial fluid-handling systems exposed to corrosive process conditions.
Industries Using Stainless Steel 317L Welded Tubes
Stainless Steel 317L Welded Tubes are supplied to industries requiring enhanced corrosion resistance and reliable performance in aggressive chemical and process environments.
Chemical Industry
Used in chemical processing equipment and systems handling corrosive materials.
Petrochemical Industry
Used in selected process equipment and corrosion-resistant fluid-handling systems.
Pulp and Paper Industry
Used in process equipment exposed to aggressive chemical solutions.
Pharmaceutical Industry
Used in selected hygienic and process equipment requiring corrosion-resistant tubing.
Engineering Industry
Used in fabricated equipment and tubular systems designed for demanding service conditions.
Water Treatment Industry
Used in selected treatment and fluid-handling equipment exposed to corrosive conditions.
Frequently Asked Questions
Stainless Steel 317L Welded Tubes are low-carbon, high-molybdenum austenitic stainless steel tubes manufactured using advanced welding technology. They provide outstanding corrosion resistance and superior weldability for highly aggressive chemical environments.
Our Stainless Steel 317L Welded Tubes are manufactured according to ASTM A249, ASTM A269, ASTM A270, ASTM A554, ASME SA249, and ASME SA269 standards.
These welded tubes offer exceptional resistance to pitting, crevice corrosion, chlorides, sulfuric acid, phosphoric acid, and aggressive chemicals while providing excellent weldability and reduced susceptibility to intergranular corrosion after welding.
They are widely used in chemical processing plants, pharmaceutical industries, petrochemical facilities, pulp & paper mills, fertilizer plants, marine engineering, heat exchangers, pressure vessels, and pollution control systems.
Stainless Steel 317L contains lower carbon than SS 317, minimizing carbide precipitation during welding and improving resistance to intergranular corrosion while maintaining excellent corrosion resistance and mechanical strength.
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 317L Welded Tubes in various diameters, wall thicknesses, surface finishes, standard lengths, and custom-cut lengths according to customer specifications.
Yes. We export Stainless Steel 317L Welded Tubes worldwide with export-standard packaging, complete documentation, and timely international delivery.
Kamal Steels offers ASTM-compliant Stainless Steel 317L 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.