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