Product Overview – ASTM A213 TP317 Seamless Tubes
ASTM A213 TP317 is an upgraded molybdenum-bearing stainless steel grade developed to offer improved corrosion resistance compared to 316 and 316L.The increased molybdenum content enhances resistance to chloride pitting, acidic media, and harsh industrial chemicals.
These seamless stainless steel tubes are manufactured through hot finished or cold drawn processes to ensure structural uniformity, dimensional accuracy, and high-pressure capability.
Manufactured through seamless hot finished or cold drawn processes, TP316Ti tubes offer uniform grain structure, precise dimensions, and dependable performance under pressure.
TP317 seamless tubes are widely used in chemical processing plants, fertilizer units, pulp and paper industries, pollution control systems, and offshore installations.
Where higher corrosion resistance is required beyond 316 performance levels, TP317 becomes the preferred specification.
Standard & International Identification - ASTM A213 TP317 Seamless Tubes
Technical Specifications – TP317 Seamless Tubes
| Tube Type: | Seamless / Cold Drawn / Hot Finished |
| Outer Diameter Range: | 6 mm to 273 mm |
| Wall Thickness: | 1 mm to 30 mm |
| Length: | Random / Cut Length / U-Bend Tubes |
| Surface Finish: | Bright Annealed / Pickled & Annealed |
| Testing: | Hydrostatic Test, Eddy Current Test,Ultrasonic Testing, PMI |
| Certification : | EN 10204 3.1 / 3.2 MTC |
Suitable for High Pressure & Severe Corrosive Environments
All specifications are in accordance of ASTM A213 / ASME SA213 standards. Mechanical and chemical values are as per standard limits. Mill Test Certificates (MTC) available upon request.
Chemical Composition of ASTM A213 TP317 Seamless 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: Higher molybdenum increases resistance to localized corrosion.
Mechanical Properties – TP317 Seamless Tubes
| Property | Minimum Value |
|---|---|
| Tensile Strength | 515 MPa |
| Yield Strength | 205 MPa |
| Elongation | 35% |
Maintains strength while offering enhanced corrosion resistance.
Corrosion Resistance & Industrial Performance
SS 317 seamless tubes provide:
In highly corrosive industrial operations, TP317 offers a clear advantage over standard 316 grades.
Major Industrial Applications of TP317 Seamless Tubes
- 🔸Chemical processing plants
- 🔸Fertilizer manufacturing units
- 🔸Pulp and paper industries
- 🔸Pollution control scrubbers
- 🔸Marine and offshore installations
- 🔸Heat exchangers handling corrosive fluids
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