-
-
-
Girgaon, Mumbai - 400004
Stainless Steel 317 Seamless Tubes Manufacturer in India
What Are Stainless Steel 317 Seamless Tubes?
Stainless Steel 317 Seamless Tubes are molybdenum-alloyed austenitic stainless steel tubes manufactured without a longitudinal weld for equipment exposed to corrosive chemicals and demanding process environments. Grade 317 is identified by UNS S31700 and contains elevated chromium, nickel and molybdenum levels, giving it stronger corrosion resistance than conventional 304 stainless steel.
The higher molybdenum content provides Stainless Steel 317 with improved resistance to pitting, crevice corrosion and chemical attack, particularly where chloride-bearing or aggressive process media are present. The alloy also offers good strength, toughness and fabrication characteristics, making it suitable for tubing systems that require dependable performance under corrosive operating conditions.
Stainless Steel 317 Seamless Tubes are supplied to applicable ASTM and ASME specifications according to the product application and dimensional requirements. Common specifications include ASTM A213 and ASTM A269, while suitable ASME SA specifications can be provided for projects requiring ASME compliance. Tubes are available in different outside diameters, wall thicknesses, schedules, finishes and lengths.
These tubes are commonly selected for chemical processing equipment, petrochemical facilities, pulp and paper plants, pollution-control systems, pharmaceutical equipment, food-processing machinery and marine service. Their combination of molybdenum-enhanced corrosion resistance and mechanical reliability makes them appropriate for aggressive industrial environments.
Kamal Steels is a Manufacturer and Stockist of Stainless Steel 317 Seamless Tubes, offering standard and customized tubing solutions for industrial projects. We supply products with MTC, inspection documentation, testing support and export-standard packaging according to customer and project requirements.
Table of Contents
- Stainless Steel 317 Seamless Tube Specifications
- Stainless Steel 317 Seamless Tube Size Chart
- Stainless Steel 317 Seamless Tube Standards
- Stainless Steel 317 Seamless Tube Features
- Stainless Steel 317 Chemical Composition
- Stainless Steel 317 Mechanical Properties
- Stainless Steel 317 Seamless Tube Applications
- Industries Using Stainless Steel 317 Seamless Tubes
- Frequently Asked Questions
Stainless Steel 317 Seamless Tube Specifications
Stainless Steel 317 Seamless Tubes can be supplied in different dimensions and surface conditions to match equipment design, process requirements and applicable material standards.
| Specification | Stainless Steel 317 Seamless Tubes |
|---|---|
| Material | Stainless Steel |
| Grade | 317 |
| UNS | S31700 |
| Tube Type | Seamless |
| ASTM Standards | ASTM A213, ASTM A269 |
| ASME Standards | ASME SA213, Applicable ASME SA 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 317 Seamless Tube Size Chart
Our Stainless Steel 317 Seamless Tubes are available in various outside diameters and wall thicknesses. Special dimensions and cut lengths can be considered for project-specific 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 317 Seamless Tube Standards
Material standards are selected according to tube application, manufacturing requirements, dimensions and service conditions. Common specifications include:
| Standard | Application / Product Requirement |
|---|---|
| ASTM A213 | Seamless ferritic and austenitic alloy-steel boiler, superheater and heat-exchanger tubes |
| ASTM A269 | Seamless and welded austenitic stainless steel tubing for general corrosion-resisting service |
| ASME SA213 | Applicable seamless ferritic and austenitic alloy-steel tubing requirements |
| ASME SA269 | Applicable austenitic stainless steel tubing requirements for general service |
Stainless Steel 317 Seamless Tube Features
Stainless Steel 317 is engineered with increased molybdenum to provide improved corrosion performance where standard austenitic stainless steel grades may not offer sufficient resistance.
- Higher molybdenum content for improved corrosion resistance
- Strong resistance to pitting and crevice corrosion
- Good resistance to aggressive chemical environments
- Good general corrosion resistance
- Suitable for chloride-containing process media
- Good strength and toughness
- Excellent ductility and fabrication characteristics
- Good weldability under suitable procedures
- Suitable for demanding chemical-processing environments
- Available in multiple sizes and finishes
Stainless Steel 317 Chemical Composition
The chemical balance of Grade 317 combines chromium, nickel and molybdenum to provide enhanced resistance to localized and general corrosion in demanding service environments.
| Element | Composition (%) |
|---|---|
| Chromium | 18.0 - 20.0 |
| Nickel | 11.0 - 15.0 |
| Molybdenum | 3.0 - 4.0 |
| Carbon | 0.08 max. |
| Manganese | 2.00 max. |
| Silicon | 0.75 max. |
| Phosphorus | 0.045 max. |
| Sulfur | 0.030 max. |
| Iron | Balance |
Stainless Steel 317 Mechanical Properties
Grade 317 provides a balance of mechanical strength and corrosion resistance for demanding tubing applications. Typical minimum mechanical requirements include:
| Property | Minimum Requirement |
|---|---|
| Tensile Strength | 515 MPa min. |
| Yield Strength | 205 MPa min. |
| Elongation | 35% min. |
| Density | Approx. 8.0 g/cm³ |
Note: Final mechanical requirements should be verified against the applicable ASTM or ASME specification, tube dimensions and supplied material certificate.
Stainless Steel 317 Seamless Tube Applications
Stainless Steel 317 Seamless Tubes are selected for systems where exposure to corrosive chemicals, chlorides and aggressive process fluids demands enhanced alloy performance.
Chemical Processing
Used for tubing and process equipment handling corrosive chemicals and aggressive fluids.
Petrochemical Plants
Applied in selected process systems where resistance to chemical attack is important.
Pulp & Paper Equipment
Suitable for process systems exposed to corrosive chemicals during pulp and paper production.
Pollution Control
Used in systems handling corrosive gases, liquids and industrial process streams.
Pharmaceutical Equipment
Used in selected corrosion-resistant process and fluid-handling systems.
Marine Equipment
Applied in selected components exposed to chloride-rich and marine environments.
Industries Using Stainless Steel 317 Seamless Tubes
Grade 317 tubing is used by industries that need stronger corrosion resistance than conventional stainless steel for specialized process and fluid-handling applications.
Chemical Industry
Used in chemical-handling systems and corrosion-resistant process equipment.
Petrochemical Industry
Selected for process equipment exposed to aggressive industrial media.
Pulp & Paper Industry
Used in process systems requiring resistance to corrosive production chemicals.
Marine Industry
Used in selected applications where chloride exposure is a concern.
Pharmaceutical Industry
Applied in corrosion-resistant equipment and process tubing.
Engineering Industry
Used for specialized industrial equipment requiring enhanced corrosion resistance.
Frequently Asked Questions
Stainless Steel 317 Seamless Tubes are high-alloy austenitic stainless steel tubes manufactured from Stainless Steel 317 (UNS S31700 / WNR 1.4449). They offer superior corrosion resistance compared to SS 316, particularly in aggressive chemical and chloride-containing environments.
Our Stainless Steel 317 Seamless Tubes are manufactured according to ASTM A213, ASTM A269, ASME SA213, and ASME SA269 international standards.
SS 317 Seamless Tubes provide exceptional resistance to pitting, crevice corrosion, chlorides, acids, and aggressive chemicals while offering excellent mechanical strength, weldability, and long service life.
They are widely used in chemical processing plants, fertilizer industries, petrochemical facilities, pulp & paper mills, marine engineering, pharmaceutical manufacturing, heat exchangers, and power generation industries.
SS 317 Seamless Tubes are available in various outside diameters, wall thicknesses, schedules, surface finishes, 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.
Stainless Steel 317 contains higher levels of molybdenum and chromium than SS 316, providing improved resistance to pitting, crevice corrosion, and aggressive chemical attack in demanding service conditions.
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 317 Seamless Tubes worldwide with export-standard packaging, complete documentation, and timely international delivery.
Kamal Steels offers ASTM-compliant Stainless Steel 317 Seamless 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.