Inconel 625 Alloy

UNS N06625
W. Nr 2.4856

Inconel 625 Alloy

  • ASTM B443
  • AMS 5599
  • AMS 5869
  • ISO 6208
  • NACE MR0175/ISO 15156-3
  • NACE MR0103/ISO 17945

Our wide capabilities give us a unique ability to supply all of your Inconel 625 needs.

precision slitting

Inconel 625 Description:

Inconel 625 is a Nickel-Chromium-Molybdenum-Columbium (Niobium) alloy with excellent oxidation resistance, corrosion resistance, and strength at high temperatures. Age-hardening treatments are not required to obtain
the high strength properties of Alloy 625 due to the solid solution effects of molybdenum and columbium on the nickel-chromium matrix. I625 is resistant to chloride-ion stress-corrosion cracking, pitting, and stress-corrosion cracking making it suitable for seawater applications. Inconel® 625 can operate from cryogenic temperatures up to 1800°F (980°C).


Inconel 625 Uses & Applications:

Applications include:

  • Honeycomb
  • Springs
  • Seals
  • Bellows
  • Diaphragms
  • Land-based turbine components
  • Aircraft exhaust
  • Heat exchangers

Industries supplied include:

  • Automotive
  • Marine
  • Chemical Processing
  • Power Generation
  • Nuclear
  • Aerospace

Nominal Composition


Physical Properties

At 70°FAt 20°C
Density0.305 lb./in³8.44 g/cm³
Modulus of Elasticity (E)30.1 x 10³ ksi208 GPa
Modulus of Rigidity (G)11.8 x 10³ ksi81.2 GPa
Coefficient of Expansion7.4 microinches/in.-°F (70-600°F)13.3 μm/m-°C (20-538°C)
Electrical Resistivity50.8 μ ohm.in129 μ
Thermal Conductivity68 Btu-in./ft.²hr.-°F9.8 W/m-K

Typical Mechanical Properties

ConditionHeat TreatmentTensile StrengthSuggested Operating Conditions
Annealed1925-2050oF (1050-1120°C)120 – 150 ksi (830-1100 MPa)-300°F to 1800°F (-184°C to 980°C)
Spring Temper200 – 250 ksi (1380 – 1724 MPa)-300°F to 700°F (-184°C to 370°C)

* INCONEL® is a registered trademark of the Special Metals Corporation group of companies.

Limitation of Liability and Disclaimer of Warranty:
  • The content in these data sheets is provided primarily by third-party melting mills and is provided for reference only. It is not intended for engineering or design.
  • Applications may be discussed, however, Combined Metals Company, LLC, does not recommend or endorse any material for any particular end use or application.
  • The data included in this data sheet are typical values and may vary.
  • Combined Metals Company, LLC, makes no representations or warranties, express or implied, as to the accuracy, completeness, condition, suitability, performance, fitness for a particular purpose, or merchantability of any information contained in any data sheet.

In no event will Combined Metals Company, LLC, be liable for any damages whatsoever arising from the use of the information included in the data sheets.


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