Inconel 718

Description:

Nickel Alloy Inconel 718 is a nickel-based, heat-resistant alloy in fine powder form. This kind of precipitation-hardening, nickel-chromium alloy is characterized by having good tensile, fatigue, creep, and rupture strength at temperatures up to 1300°F. Nickel Alloy Inconel 718 also has outstanding corrosion resistance in various corrosive environments.

Applications:

  • Aero- and land-based turbine engine parts
  • Rocket and space application components
  • Chemical and process industry parts
  • Oil well, petroleum, and natural gas industry parts

Carbon (C) = max 0.08% Boron (B) = max 0.006% Tantalum (Ta) = max 0.05%
Silicon (Si) = max 0.35% Manganese (Mn) = max 0.35% Copper (Cu) = max 0.30%
Sulfur (S) = max 0.015% Phosphorus (P) = max 0.015% Titanium (Ti) = 0.65-1.15%
Nickel (Ni) = 50.00-55.00% Chromium (Cr) = 17.00-21.00% Iron (Fe) = remainder
Niobium (Nb) = 4.75-5.50% Molybdenum (Mo) = 2.80-3.30%
Aluminum (Al) = 0.20-0.80% Cobalt (Co) = max 1.00%

Stress Relief (SR):

Stress relieve at 1950°F for 1.5 hours

Heat Treatment (HT):

(OPTIONAL) – Heat Treatment to AMS 5662.

Hot Isostatic Pressing (HIP):

(OPTIONAL)


3DMT MATERIAL DATA
Horizontal AMS 5596, 5662,5663
(Min Requirement)
Typical Wrought MLS
(Stress Relief)
MLS
(SHT & HIP)
0.02% Yield (ksi) 150 165-180 124.2 164.2
Ultimate Tensile (ksi) 180-185 192-208 167.7 202.2
Elongation (%) 6-12 17-22 30.6 16.4
Hardness (HRC) 35.5 40-46 38-36 42.5

The data above is general information that may vary from machine to machine and supplier to supplier.

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