Haynes 25• • Trade name of Haynes International
W.NR 2.4964
UNS R30605
AWS 060
UNS R30605
AWS 060
Haynes 25 is a Cobalt-Nickel-Chromium-Tungsten alloy that
combines
excellent high temperature strength with good resistance to
oxidising
environments up to 980oC (1795oF) for long exposures. It also
has
excellent resistance to sulphidation.
Applications include:
- Parts for Gas Turbine Engines and bearings
| Approximate Chemical Composition | |
| Co | 51% max |
| Cr | 20% |
| W | 15% |
| Ni | 10% |
| Fe | 3% max |
| Mn | 1.5% |
| DENSITY | 9.13 g/cm3 | 0.330 lb/in3 |
| MELTING POINT | 1410oC | 2570oF |
| COEFFICIENT OF EXPANSION | 12.3 µm/m °C ( 20 - 100°C) |
6.8 x 10-6 in/in
°F ( 70 - 212°F) |
| MODULUS OF RIGIDITY | 98 kN/mm2 | 14214 ksi |
| MODULUS OF ELASTICITY | 225 kN/mm2 | 32634 ksi |
| CONDITION OF SUPPLY | HEAT TREATMENT (AFTER FORMING) |
| Annealed/Spring Temper | Stress relieve at 400oC - 450oC (750oF - 840oF) for 2 hours and air cool. |
| CONDITION |
APPROX TENSILE STRENGTH |
APPROX SERVICE TEMPERATURE |
||||
| Annealed | 950-1100 N/mm2 | 138-159 ksi | -200o to +900oC | -330o to +1650oF | ||
| (for lightly stressed applications) | ||||||
| Spring Temper | 1400-1800 N/mm2 | 203-261 ksi | -200o to +900oC | -330o to +1650oF | ||
| (for lightly stressed applications) | ||||||
| STANDARDS | |
| AMS 5976 | ASTM F90 |
