Inconel 718 is a Gamma Prime strengthened alloy with excellent mechanical properties at elevated temperatures, as well as cryogenic temperatures. Suitable for temperatures upto around 1300 F. Can be readily worked and age hardened.

Excellent strength from -423 degrees F to 1300 degrees F (-253 degrees C to 705 degrees C). Age hardenable and may be welded in fully aged condition, Excellent oxidation resistance up to 1800 degrees F (980 degrees C). Typically sold in the solution annealed temper, but can be ordered aged, cold worked, or cold worked & aged.

Inconel718 alloy is a precipitated hardened nickel-chromium ferroalloy containing niobium and molybdenum. It has high strength, good toughness and corrosion resistance at high and low temperatures below 650ºC.The state can be solid solution treatment or precipitate hardening state.
Easy to process.
High tensile strength, fatigue strength, creep resistance and fracture strength at 700ºC
High oxidation resistance at 1000ºC
Stable chemical properties at low temperatures
Good welding performance

Applications

Uses for Inconel 718 tend to be in the field of gas turbine components and cryogenic storage tanks. Jet engines, pump bodies and parts, rocket motors and thrust reversers, nuclear fuel element spacers, hot extrusion tooling. Other popular uses are high strength bolting, and down hole shafting. 

 

Chemical Requirements
	Ni	Cr	Fe	Mo	Nb	Co	Ti	Mn	Si
Max	55.0	21.0	remain	3.3	5.5	1.0	1.15	0.35	0.35
Min	50.0	17.0		2.8	4.75		0.65