Inconel® Alloys Reference Table

Engineering Materials Data

Inconel® Alloys Table

Inconel Alloy Characteristics
188 Often used for commercial gas turbine and aerospace applications.
600 Solid solution strengthened
625 Acid resistant, good weldability. The LCF version is typically used in bellows.
690 Low cobalt content for nuclear applications, and low resistivity
713C Precipitaion hardenable nickel-chromium base cast alloy
718 Gamma double prime strengthened with good weldability
751 Increased aluminium content for improved rupture strength in the 1600 °F range
792 Increased aluminium content for improved high temperature corrosion properties, used especially in gas turbines
939 Gamma prime strengthened to increase weldability

In age hardening or precipitation strengthening varieties, alloying additions of aluminum and titanium combine with nickel to form the intermetallic compound Ni3(Ti,Al) or gamma prime (γ'). Gamma prime forms small cubic crystals that inhibit slip and creep effectively at elevated temperatures.

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

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