Product Description
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.
STANDARD PRODUCT FORMS
Sheet, round bar, flat bar, forging stock, hexagon, wire,
extruded section and plate.
extruded section and plate.
MAJOR SPECIFICATIONS
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
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
LIMITING CHEMICAL COMPOSITION, %
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.
PHYSICAL CONSTANTS AND THERMAL PROPERTIES
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
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
TYPICAL MECHANICAL PROPERTIES

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