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Inconel® 718 Physical Constants Table Chart

Engineering Materials Data

INCONEL® alloy 718 (UNS N07718/W.Nr. 2.4668) is a high-strength, corrosion-resistant nickel chromium material. The age-hardenable alloy can be resonably machines into complex parts. Its welding characteristics, especially its resistance to postweld cracking, are good.

Inconel 718 Physical Constants

Density, lb/in3
Annealed
0.296
Annealed and Aged
0.297
Melting Temparature Range
°F
2300-2437
°C 1260-1336
Specific Heat
70°F, Btu/lb °F (at 21°C, J/kg °C) 0.104 (435)
Curie Temperature, °F (°C)
Annealed Material
<-320 (<-196)
Annealed and Aged Material
-170 (-112)
Permeability at 200 oersted and 70°F
Annealed Material
1.0013
Annealed and Aged Material 1.0011

INCONEL® is a trademark of the Special Metals Corporation group of companies.