InconelĀ® 718 is a precipitation hardened nickel-chromium alloy, recognized for its durability. 718 is characterized for excellent welding and has a high strength capacity for corrosion and oxidation. It is good in hot and cold environments and has a fatigue strength that qualifies it for industrial uses. A few of the industries 718 is utilized within include:

  • Aerospace
  • Nuclear reactors

A few of the specific products 718 is used for are:

  • Airframe components
  • Gas turbine engine parts
  • Safety valves

Vincent Metals handles InconelĀ® 718 in rod, plate, sheet/strip, and foil.

Chemical Data, Mechanical Properties and Specifications for Nickel Alloy 718

Chemical

Chemical Range for Nickel Alloy 718
Element Minimum Maximum
Aluminum 0.20 0.80
Boron -- 0.006
Carbon -- 0.08
Chromium 17.0 21.0
Cobalt -- 1.0
Copper -- 0.30
Iron Balance --
Manganese -- 0.35
Molybdenum 2.80 3.30
Nickel 50.0 55.0
Niobium 4.75 5.50
Phosphorus -- 0.015
Silicon -- 0.35
Sulphur -- 0.015
Titanium 0.65 1.15

Mechanical

Typical Mechanical Properties for Nickel Alloy 718
Form Tensile Strength Yield Strength Elongation at Break
Annealed Bar 135 ksi 70 ksi 45%

Specs

Applicable Specifications
Rod AMS 5662 (cap of AMS 5663), ASTM B637
Sheet & Plate ASTM B670, AMS 5596
Tube & Pipe AMS 5589, AMS 5590
UNS N07718

Inconel is a registered trademark of Special Metals