Inconel 625 |UNS N06625|2.4856 Seamless Pipe
Our Inconel 625 seamless pipes offer outstanding protection against pitting, crevice corrosion, and chloride-ion stress corrosion cracking, making them indispensable for aerospace, marine engineering, and chemical processing. Designed to maintain structural integrity from cryogenic temperatures up to 982°C (1800°F), our products undergo rigorous Non-Destructive Testing (NDT) and third-party inspections. Tengqi provides comprehensive technical data—including chemical composition and mechanical properties—to support precision engineering and high-pressure industrial applications.
SeamlessInconel 625 Pipe (Inconel625 / UNS N06625 / W.Nr. 2.4856) is a niobium-strengthened Ni-Cr-Mo alloy with outstanding fatigue and seawater corrosion resistance. 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
Inconel625 (UNS N06625) — Composition %
| UNS | C | Mn | P | S | Si | Cr | Ni | Mo | Ti | Nb | Al | Co | Fe |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N06625 | ≤ 0.10 | ≤ 0.50 | ≤ 0.015 | ≤ 0.015 | ≤ 0.5 | 20.0 – 23.0 | ≥ 58.0 | 8.0 – 10.0 | ≤ 0.40 | 3.15 – 4.15 | ≤ 0.4 | ≤ 1.0 | ≤ 5.0 |
Mechanical Properties
| Property | Value |
|---|---|
| Delivery Condition | Solution annealed, pickled & polished |
| Tensile Strength | ≥ 827 MPa |
| Yield Strength (0.2% offset) | ≥ 414 MPa |
| Elongation in 2 in. / 50 mm | ≥ 30% |
Physical Properties
| Property | Value |
|---|---|
| Density | 8.44 g/cm3 |
| Thermal Conductivity | 9.8 W/m·K |
| Specific Heat Capacity | 410 J/kg·K |
| Elastic Modulus | 208 GPa |
| Magnetic Properties | Practically non-magnetic |
| PREN (Pitting Resistance Equivalent) | ≥ 51.0 |
Industry Applications
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CONTACT US
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