UDIMET R41

A precipitation hardenable nickel-chromium alloy containing significant amounts of cobalt and molybdenum, along with lesser amounts of aluminum and titanium. It exhibits extremely high room and elevated temperature mechanical properties. Excellent corrosion resistance and fabricability have led to wide usage in critical aircraft engine components such as nozzle partitions, turbine blades and wheels, combustion chamber liners and structural hardware.

Forging billet, bar, sheet and plate.

UNS N 07041, AMS 5545
AMS 5712, AMS 5713

Limiting
Ni ...........Balance
Cr......18.0 – 20.0
Co .....10.0 – 12.0
Mo ......9.0 – 10.5
Al ......1.40 – 1.80
Ti ...........3.0 – 3.3
Fe ......... 5.0 max.
B ...0.003 – 0.010
C ..........0.12 max.

Density, Ib/in ³ ........................................................................0.298
g/cm ³ .........................................................................8.25
Melting Range, °F ...................................................2250 – 2535
°C ...................................................1232 – 1391
Specific Heat, Btu/lb • °F ....................................................0.104
J/kg • °C ...........................................................435
Coefficient of Expansion, 70 – 200°F, 10 ^-6 in/in • °F.....6.63
21 – 93°C, µm/m • °C ............11.9
Thermal Conductivity, Btu • in/ft 2 • h • °F ..............................62
W/m • °C .............................................9.0