Product Overview – ASTM A269 TP317 Welded Tubes
ASTM A269 TP317 welded stainless steel tubes are engineered for industrial applications where superior corrosion resistance is essential.
This stainless steel grade contains higher molybdenum and chromium levels, significantly improving resistance to pitting and crevice corrosion compared to conventional 316 stainless steel. Because of this enhanced composition, TP317 welded tubes perform well in acidic process environments and chloride-rich industrial conditions.
The tubes are manufactured using precision cold rolled stainless steel strips that are formed and welded using advanced welding technology. After welding, the tubes undergo solution annealing, pickling, and rigorous quality inspections to ensure uniform mechanical properties and dimensional accuracy.
ASTM A269 TP317 welded stainless steel tubes are widely used in chemical processing equipment, pulp and paper plants, marine installations, pollution control systems, and high-performance industrial fluid transport pipelines.
Standard & International Identification - ASTM A269 TP317 Welded Tubes
Technical Specifications – TP317 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 TP317 Welded Tubes
(As per ASTM specification)
| Element | Max (%) |
|---|---|
| Carbon (C): | 0.08% |
| 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 increased molybdenum content improves corrosion resistance, particularly in chloride and acidic environments.
Mechanical Properties – ASTM A269 TP317 Tubes
| Property | Minimum Value |
|---|---|
| Tensile Strength | 515 MPa |
| Yield Strength | 240 MPa |
| Elongation | 35% |
These mechanical characteristics ensure reliable performance in demanding industrial applications.
Corrosion Resistance of SS 317 Tubes
SS 317 welded tubes provide superior resistance to aggressive industrial environments where standard stainless steels may not perform adequately.
Key corrosion resistance benefits include:
These properties make TP317 stainless steel tubing a preferred material for chemical process piping and corrosive industrial systems.
Major Industrial Applications of TP317 welded stainless steel tubes
- ASTM A269 TP317 welded stainless steel tubes are widely used in:
- 🔸Chemical Processing Industries
- 🔸Petrochemical Plants
- 🔸Industrial Heat Exchangers
- 🔸High Temperature Process Equipment
- 🔸Marine Engineering Systems
- 🔸Industrial Fluid Transport Pipelines
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