Project Description
Haynes 25 (UNS R30605 / W.Nr 2.4964)
Haynes 25 (UNS R30605 / W.Nr 2.4964) is a cobalt-nickel- chromium-tungsten alloy that combines excellent high-temperature strength with good resistance to oxidizing environments up to 980℃ for prolonged exposures, and excellent resistance to sulfidation. It can be fabricated and formed by conventional techniques, and has been used for cast components. Other attractive features include excellent resistance to metal galling.
Equivalent Grades
Trademark | GB | GOST | ASTM | UNS | DIN | W.Nr. | NF | BS | JIS | SS |
Haynes 25 L605 | GH5605 | – | Haynes 25 | R30605 | CoCr20W15Ni | 2.4964 2.4967 | CoCr20W15Ni KC20WN | – | – | – |
Chemical Composition, %
Alloy | C | Si | Mn | P | S | Cr | Ni | Co | W | Fe |
Haynes 25 | 0.05-0.15 | ≤0.40 | 1.0-2.0 | ≤0.04 | ≤0.03 | 19.0-21.0 | 9.0-11.0 | Bal | 14.0-16.0 | ≤3.0 |
Typical Physical and Mechanical Properties (RT, Solution annealed)
Density, g/cm3 | Melting Point, ℃ | Tensile Strength, MPa | Yield Strength, MPa | ELongation, % | Hardness, HRB |
9.07 | 1330-1410 | 996 | 476 | 54.7 | / |
Available Products and Specifications
Rod, Bar, Wire and Forgings | AMS 5759 |
Plate, Sheet and Strip | AMS 5537 |
Pipe and Tube | – |
Welding Product | AMS 5797, AMS 5796 |
Others | – |
Features
- Outstanding high temperature strength
- Oxidation resistant to 1800° F
- Galling resistant
- Resistant to marine environments, acids and body fluids
Applications
- Gas turbine engine combustion chambers and afterburners
- High temperature ball bearings and bearing races
- Springs
- Heart valves