Inconel 718 Manufacturer and Supplier

Inconel 718 Manufacturer and Supplier

Inconel 718 (Alloy 718) is a well-known austenitic nickel-based super alloy which exhibits excellent tensile and impact strength, even at cryogenic temperatures. Brilliance Special Steel manufactures a wide range of Inconel 718 products, always to the highest standard.

Inconel 718 Products & Properties

Inconel 718 is used in applications requiring high strength to approximately 760°C (1400°F) and oxidation resistance to approximately 982°C (1800°F) . Being a mixture of nickel and chromium, it exhibits high levels of strength and durability.

Inconel 718 Mechanical Properties

Annealed, Aged          

Yield Strength       KSI (MPa)       125

Tensile Strength    KSI (MPa)       180

Hardness HB   109

Elongation     50mm     10 (%)

Inconel 718 Chemistry

Nickel     Ni    50-55 Max

Iron Fe    Balance

Carbon   C     0.08 Max

Chromium     Cr    17-21 Max

Silicon     Si     0.35 Max

Manganese    Mn  0.35 Max

Sulphur  S     0.015 Max

Phosphorus   P     0.015 Max

Molybdenum Mo  2.80-3.30 Max

Titanium Ti     0.65-1.15 Max

Cobalt    Co   1

Boron     B     0.001-0.006 Max

Aluminium     Al    0.35-0.80 Max

Copper   Cu   0.15 Max

Niobium + Tantalum    Nb + Ta  4.75-5.50 Max

Inconel 718 Physical Properties

Density   g/cm3     8.23

Curie Temp    °F    -169.6 (aged), °C    -112 (aged)

Melting Point °F    2200-2450, °C    1210-1344

Coefficient of Thermal Expansion: 20-100    °C    12.1 x 10-6/°C

Youngs / Shears Modulus    MPa 200,000

Specific Heat  J/g-°C    20

Thermal Conductivity at 20°C     W/m.K°C 11.1

Magnetic Permeability at 20°C           <1.002

Specific Electrical Resistance at 20°C  (μΩ-m)   1.25