Hastelloy B2 |UNS N10665|2.4617 Seamless Tube
Thanks to their excellent corrosion resistance, high mechanical strength, and thermal stability, Hastelloy B2 seamless tubes perform reliably under high temperature and high-pressure operating conditions.
TENGQI, a professional nickel alloy tube manufacturer and supplier based in Fujian, China, specializes in producing precision seamless Hastelloy B2 tubes in compliance with international standards such as ASTM B622 / ASME SB622. Our products are manufactured using advanced production technology and strict quality control procedures.
Each tube undergoes comprehensive inspection and testing, including:
Chemical composition analysis
Mechanical property testing
Non-destructive testing (NDT)
Hydrostatic or eddy current testing
Full material traceability documentation
All tubes are carefully packaged and fully prepared for global export, ensuring consistent quality, reliable performance, and long service life in demanding industrial environments.
SeamlessHastelloy B2 Tube (HastelloyB2 / UNS N10665 / W.Nr. 2.4617) is a nickel-molybdenum alloy immune to hydrochloric acid across all concentrations. 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 B163 — Seamless Condenser & Heat Exchanger Tubes
- ASTM B167 / B407 / B423 — Seamless Tube
- ASTM B444 — Seamless Pipe & Tube
- ASTM B704 — Welded Tube
- ASTM B829 — General Requirements
- Finishing: solution annealed, pickled & polished; bright annealed available on request
Size Range
| Outside Diameter (OD) | Wall Thickness | Length |
|---|---|---|
| 6.35 mm – 257 mm (1/4"– 10.1") | 0.5 mm – 12.7 mm | ≤ 22 m |
Chemical Composition
HastelloyB2 (UNS N10665) — Composition %
| UNS | C | Mn | P | S | Si | Cr | Ni | Mo | Co | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| N10665 | ≤ 0.02 | ≤ 1.0 | ≤ 0.04 | ≤ 0.03 | ≤ 0.10 | ≤ 1.0 | remainder | 26.0 – 30.0 | ≤ 1.0 | ≤ 2.0 |
Mechanical Properties
| Property | Value |
|---|---|
| Delivery Condition | Solution annealed, pickled & polished |
| Tensile Strength | ≥ 760 MPa |
| Yield Strength (0.2% offset) | ≥ 350 MPa |
| Elongation in 2 in. / 50 mm | ≥ 40% |
Physical Properties
| Property | Value |
|---|---|
| Density | 9.22 g/cm3 |
| Thermal Conductivity | 11.1 W/m·K |
| Specific Heat Capacity | 373 J/kg·K |
| Elastic Modulus | 217 GPa |
| Magnetic Properties | Practically non-magnetic |
Industry Applications
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CONTACT US
Lidun Industrial Park, Lidun Town, Zhouning County, Ningde City, Fujian Province,355400,China
+86-577-88877003
+86-577-88877015
+86-577-88877019
+86 13587686960
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