Inconel Alloy 783 Plate, UNS R30783 Plate, U.S. Patent 5,478,417 Sheet, Inconel 783 Coil

The newest of the high-performance superalloy UNS R30783 Plate invented by Special Metals Corporation, INCONEL alloy 783 (UNS R30783 / U.S. Patent 5,478,417), is an oxidation-resistant, low expansion, nickel-cobalt-iron alloy with aluminum, chromium, and niobium additions. The Inconel 783 Plate is of considerable interest to aircraft gas turbine engine designers and materials engineers for containment and clearance control components such as rings, casings, shrouds and seals for compressors, turbines and exhaust systems.

The three-phase age hardenable Inconel 783 Plate offers a range of improvements for these applications of Inconel 783 Coil over alternative alloy plates in current use:
coefficient of thermal expansion approximately 20% lower than that of INCONEL alloy 718.
Excellent resistance to oxidation, demonstrated in cyclic tests, at temperatures up to and beyond 1300°F (704°C).

Resistance to SAGBO (stress accelerated grain boundary oxidation) comparable to that of INCONEL alloy 718, and significantly better than that of INCOLOY alloy 909.

Equivalent International Designations for Material Inconel 783

Chemical Composition for Material Inconel 783