Product Overview – ASTM A269 TP317L Welded Tubes
ASTM A269 TP317L welded stainless steel tubes are designed for critical industrial applications where corrosion resistance and structural integrity are essential.
This stainless steel grade contains higher molybdenum content than conventional 316 stainless steel, which significantly enhances resistance to pitting and crevice corrosion in chloride environments. The low carbon composition of TP317L prevents carbide precipitation during welding, reducing the risk of intergranular corrosion.
These welded tubes are manufactured using high-quality stainless steel strips that undergo precision forming, automatic welding, solution annealing, and pickling processes to ensure consistent mechanical properties and dimensional accuracy.
Due to their durability and corrosion resistance, ASTM A269 TP317L welded stainless steel tubes are widely used in chemical processing plants, marine systems, pollution control equipment, pharmaceutical industries, and industrial heat exchanger applications.
Standard & International Identification - ASTM A269 TP317L Welded Tubes
Technical Specifications – TP317L Welded Tubes
| Tube Type: | Welded Stainless Steel Tubes |
| Manufacturing Process: | Cold Rolled Stainless Steel Strip → Precision Welding → Solution Annealing → Pickling & Passivation |
| Outer Diameter: | 6 mm to 114 mm |
| Wall Thickness: | 0.5 mm to 6 mm |
| Length Options: | Random / Cut Length / Custom Fabricated Tubes |
| Surface Finish: | Bright Annealed / Pickled & Annealed / Polished Finish Available |
| Testing & Inspection: | Hydrostatic Test, Eddy Current Test,Flattening Test, PMI, Flaring Test |
| Certification : | EN 10204 3.1 / 3.2 MTC |
Third Party Inspection Available
All specifications are in accordance of ASTM A269 / ASME SA269 standards. Mechanical and chemical values are as per standard limits. Mill Test Certificates (MTC) available upon request.
Chemical Composition – Stainless Steel TP317L Welded Tubes
(As per ASTM specification)
| Element | Max (%) |
|---|---|
| Carbon (C): | 0.03% |
| Manganese (Mn): | 2.00 % |
| Silicon (Si): | 1.00% |
| Phosphorus (P): | 0.045 % |
| Sulfur (S): | 0.030 % |
| Chromium (Cr): | 18.0-20.0% |
| Nickel (Ni): | 11.0-15.0% |
| Molybdenum (Mo): | 3.0 – 4.0% |
| Iron : | Balance |
Note: The higher molybdenum content enhances resistance to chloride-induced corrosion.
Mechanical Properties – ASTM A269 TP317L Tubes
| Property | Minimum Value |
|---|---|
| Tensile Strength | 515 MPa |
| Yield Strength | 240 MPa |
| Elongation | 35% |
These mechanical properties provide durability and reliability for demanding industrial systems.
Corrosion Resistance of SS 317L Tubes
SS 317L welded tubes provide outstanding corrosion resistance, particularly in highly aggressive industrial environments.
Key corrosion resistance features include:
Because of these advantages, TP317L stainless steel tubing is commonly selected for corrosive industrial processing systems and chemical handling equipment.
Major Industrial Applications of TP317L welded stainless steel tubes
- ASTM A269 TP317L welded stainless steel tubes are widely used in:
- 🔸Chemical Processing Industries
- 🔸Petrochemical Plants
- 🔸Pulp and Paper Manufacturing
- 🔸Marine Engineering Systems
- 🔸Pharmaceutical Processing Equipment
- 🔸Industrial Heat Exchanger Systems
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