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.

Typical Mechanical Properties
(Precipitation Hardened)

Rupture Strength (1000 h)

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

Specifications and Designation

UNS N07080
BS 3076 (NA 20),
HR1, HR201,
HR401, HR601
ASTM B 637
DIN 17742, 17754
Werkstoff Nr. 2.4952, 2.4631
WL Nr. 2.4631
AFNOR NC 20TA
AECMA Pr EN 2188-2191, 2396, 2397

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