Inconel 718 is a nickel-chromium alloy that contains supplemental amounts of columbium, iron,
molybdenum, aluminum, and titanium. Given this alloy's durability and ductility characteristics,
it has a wide range of applications in a broad spectrum of industries. 

Common uses of nickel alloy 718

• Deployment in gas turbines
• Subsurface safety valves
• Aircraft engines
• Thrust Reversers
• Industrial fasteners

Performance of Nickel Alloy 718

Nickel alloy 718 provides the following universal performance characteristics:

• Good weldability & formability
• High durability in environments with temperatures of up to 1300° F
• Excellent oxidation resistance
• Superior cryogenics properties

Specifically, alloy 718 effectively resists stress rupture and creep when exposed to temperatures
as hot as 1300°F, and maintains corrosion resistance below the 1800° threshold. Moreover,
its tensile strength and impact resistance remain intact at temperatures in the cryogenic range,
making it particularly useful for aerospace applications.

Alloy 718 is classified as "age-hardenable," meaning that its resistance properties increase over
time-especially with prolonged exposure to cold temperatures. Numerous AMS and NACE
specification processes can be deployed to customize its application-specific performance
characteristics. Additionally, heat treatments can be used to soften the alloy prior to welding,
forming or machining. Its machinability rating is 12% of B-1112, and it has typical stock removal
rates of 20 surface feet per minute with high-velocity tools and 80 surface feet per minute with
carbide tools.

Chemical Composition Table

UNS: N07718 / TYPE: 718