Seamless Stainless Steel TP310H |UNS S31009|1.4845 Pipe
Distinguished by its optimized carbon content, our TP310H tubing offers enhanced mechanical properties and thermal stability at service temperatures up to 1100°C (2012°F). This makes them indispensable for mission-critical applications in boiler tubes, radiant coils, and refinery equipment. Through advanced cold-drawing and precise solution annealing, we ensures every pipe maintains a uniform grain structure and maximum resistance to high-temperature corrosion and scaling.
"The controlled carbon range (0.04-0.10%) in our TP310H pipes ensures higher creep strength compared to the low-carbon 310S version, making it ideal for continuous high-load thermal applications."
Seamless Stainless steel TP310H pipe (TP310H / UNS S31009 / W.Nr. 1.4845) is the controlled high-carbon 25/20 grade for creep resistance in superheater service. Manufactured by Tengqi in Fujian, China, every heat is fully traceable, hydro-tested and available with third-party inspection (SGS / BV / TUV) on request.
Product Specifications
- ASTM A312 / ASME SA312 — Seamless & Welded
- ASTM A999 / A999M — General Requirements
- ASTM A213 / ASME SA213 — Seamless
- EN 10216-5 — Seamless Pressure Tubing
- Finishing: solution annealed, pickled & polished; bright annealed available on request
Size Range
| Outside Diameter (OD) | Wall Thickness | Length |
|---|---|---|
| 6 mm – 1016 mm (1/4"– 40") | 0.5 mm – 65 mm | 6 m / 12 m, or as required |
Chemical Composition
TP310H (UNS S31009) — Composition %
| UNS | C | Mn | P | S | Si | Cr | Ni |
|---|---|---|---|---|---|---|---|
| S31009 | 0.04 – 0.10 | ≤ 2.00 | ≤ 0.045 | ≤ 0.030 | ≤ 1.00 | 24.0 – 26.0 | 19.0 – 22.0 |
Mechanical Properties
| Property | Value |
|---|---|
| Delivery Condition | Solution annealed, pickled & polished |
| Tensile Strength | ≥ 515 MPa |
| Yield Strength (0.2% offset) | ≥ 205 MPa |
| Elongation in 2 in. / 50 mm | ≥ 35% |
Physical Properties
| Property | Value |
|---|---|
| Density | 7.98 g/cm3 |
| Thermal Conductivity | 14.2 W/m·K |
| Specific Heat Capacity | 500 J/kg·K |
| Elastic Modulus | 200 GPa |
| Magnetic Properties | Non-magnetic (slightly magnetic when cold worked) |
| PREN (Pitting Resistance Equivalent) | 24.0-26.0 |
Industry Applications
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CONTACT US
Lidun Industrial Park, Lidun Town, Zhouning County, Ningde City, Fujian Province，355400，China
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