Hastelloy C276 |UNS N10276|2.4819 Seamless Pipe
Featuring an extra-low carbon and silicon content, our C276 pipes minimize carbide precipitation in the weld heat-affected zone, maintaining superior corrosion resistance in the as-welded condition. These pipes are indispensable for handling wet chlorine gas, hypochlorite, and chlorine dioxide, making them the top choice for pollution control, flue gas desulfurization (FGD), and marine engineering. Available in various sizes including SCH 10 and SCH 40, and offered with a precision-polished finish, Tengqi ensures every pipe delivers maximum durability for critical heat exchangers and aggressive chemical processing.
SeamlessHastelloy C276 Pipe (HastelloyC276 / UNS N10276 / W.Nr. 2.4819) is the most versatile Ni-Cr-Mo alloy, resisting wet chlorine, hypochlorite and mixed acids. 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 B161 / B163 — Seamless Tube & Pipe
- ASTM B165 / B167 — Seamless Pipe
- ASTM B407 / B423 — Seamless Pipe & Tube
- ASTM B622 — Seamless Pipe & Tube
- ASTM B829 — General Requirements
- 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
HastelloyC276 (UNS N10276) — Composition %
| UNS | C | Mn | P | S | Si | Cr | Ni | Mo | W | Co | Fe | V |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N10276 | ≤ 0.010 | ≤ 1.0 | ≤ 0.04 | ≤ 0.03 | ≤ 0.08 | 14.5 – 16.5 | remainder | 15.0 – 17.0 | 3.0 – 4.5 | ≤ 2.5 | 4.0 – 7.0 | ≤ 0.35 |
Mechanical Properties
| Property | Value |
|---|---|
| Delivery Condition | Solution annealed, pickled & polished |
| Tensile Strength | ≥ 690 MPa |
| Yield Strength (0.2% offset) | ≥ 283 MPa |
| Elongation in 2 in. / 50 mm | ≥ 40% |
Physical Properties
| Property | Value |
|---|---|
| Density | 8.89 g/cm3 |
| Thermal Conductivity | 9.8 W/m·K |
| Specific Heat Capacity | 407 J/kg·K |
| Elastic Modulus | 205 GPa |
| Magnetic Properties | Practically non-magnetic |
| PREN (Pitting Resistance Equivalent) | ≥ 68.0 |
Industry Applications
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