NIMONIC 80A

A nickel-chromium alloy similar to NIMONIC alloy 75 but made precipitation hardenable by additions of aluminum and titanium. The alloy has good corrosion and oxidation resistance and high tensile and creep-rupture properties at temperatures to 1500°F (815°C). Used for gas-turbine components (blades, rings and discs), bolts, tube supports in nuclear steam generators, die-casting inserts and cores, and exhaust valves in internal-combustion engines.

Sheet, round bar, flat bar, forging stock, hexagon, wire,
extruded section and plate.

UNS N07080
BS 3076 (NA20), HR1,
HR201, HR401, HR601
ASTM B 637
AIR 9165-37
DIN 17742
Werkstoff Nr. 2.4952, 2.4631
AECMA Pr EN 2188 – 2191,
2396, 2397

Ni........Remainder
Cr.......18.0 – 21.0
Ti............1.8 – 2.7
Al............1.0 – 1.8
C...........0.10 max.
Si............ 1.0 max.
Cu.......... 0.2 max.
Fe........... 3.0 max.
Mn.......... 1.0 max.
Co........... 2.0 max.
B........ 0.008 max.
Zr..........0.15 max.
S........ 0.015 max.

Density, Ib/in³.........................................................................0.296
g/cm³......................................................................... 8.19
Melting Range, °F...................................................2410 – 2490
°C...................................................1320 – 1365
Specific Heat, Btu/lb•°F.....................................................0.107
J/kg•°C............................................................ 448
Permeability at 200 Oersted (15.9 kA/m).................. 1.0006
Coefficient of Expansion, 68 – 212°F, 10^-6 in/in •°F........ 7.1
20 – 100°C, μm/m • °C.......... 12.7
Thermal Conductivity, Btu • in/ft²•h•°F............................77.7
W/m • °C.......................................... 11.2
Electrical Resistivity, ohm •circ mil/ft................................ 746
μΩ•m................................................. 1.24