Inconel 718

This is a high-strength, high-temperature resistant and corrosion resistant nickel-chromium alloy.

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Description

This is a high-strength, high-temperature resistant and corrosion resistant nickel-chromium alloy. It is suitable for use at cryogenic temperatures and also for use in air up to 1300 F. The alloy is readily worked and can be age-hardened.

Applications include gas turbine hot section components and cryogenic storage tanks.

Heat Treatment The alloy is age-hardenable (see under “Aging”) and can be annealed at 1900 F followed by air cooling.

Physical Data : [top]

 

Density (lb / cu. in.)

0.29

Specific Gravity

7.98

Specific Heat (Btu/lb/Deg F – [32-212 Deg F])

0.104

Electrical Resistivity (microhm-cm (at 68 Deg F))

753

Melting Point (Deg F)

2420

Poissons Ratio

0.284

Thermal Conductivity

77

Mean Coeff Thermal Expansion

7.3

Magnetic Permeability

1.001

Modulus of Elasticity Tension

29

This publication may include technical inaccuracies or typographical errors. Changes may be periodically made to the information herein.