Inconel 625

Description:

Nickel Alloy Inconel 625 is a nickel-based heat-resistant alloy. It is characterized by having high tensile, creep, and rupture strength. Conventionally cast or wrought components in this type of nickel alloy have typically excellent fatigue and thermal- fatigue properties combined with oxidation resistance. IN625 is expected to have good corrosion resistance in various corrosive environments.

Applications:

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

Chromium (Cr) = 22.00 - 23.00% Aluminum (Al) = max 0.40% Manganese (Mn) = max 0.50%
Molybdenum (Mo) = 8.00 – 10.00% Cobalt (Co) = max 1.00% Phosphorous (P) = max 0.015%
Niobium (Nb) = 3.15 – 4.15% Carbon (C) = max 0.10% Sulfur (S) = max 0.015%
Iron (Fe) = max 5.00% Tantalum (Ta) = max 0.05% Nickel (Ni) = Remainder
Titanium (Ti) = max 0.40% Silicon (Si) = max 0.50%

Stress Relief (SR):

Stress relieve at 2100°F +/- 25°F for 2 hours +/- 15 minutes in vacuum. Follow by argon gas cool with cooling rate equivalent to air cool or faster.

Heat Treatment (HT):

Solution heat treat at 2150°F +/- 25°F for 1 hour +/- 10 minutes. Follow by 6 bar argon gas quench.

Hot Isostatic Pressing (HIP):

(OPTIONAL)


3DMT MATERIAL DATA
Horizontal AMS 5599, 5666
(Min Requirement)
Typical Wrought MLS
(Stress Relief)
MLS
(SHT & HIP)
0.02% Yield (ksi) 60 60-95 68.2 66.4
Ultimate Tensile (ksi) 120 120-150 136 132.7
Elongation (%) 30 40-60 33 40.8
Hardness (HRC) 105 (max) 78-97 93.9 91.9

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

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