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Inconel 718

Inconel 718 Suppliers

Inconel 718 (Alloy 718) is a well-known austenitic nickel-based super alloy which exhibits excellent tensile and impact strength, even at cryogenic temperatures.

City Special Metals manufacture a wide range of Inconel 718 products, always to the highest standard. As well as this, we also work with other specialist alloys and are widely known as Europe's largest stockist of low and controlled expansion alloys. Want to know more about Inconel 718, our products or would like to get a quote? Discuss your requirements by contacting our team today.

Inconel 718 Stockist Range

Product Form Range From Range To
Inconel 718 Round Bar icon

Inconel 718 Round Bar

3.175mm 304mm
Inconel 718 Plate icon

Inconel 718 Plate

4.7mm 100mm
Inconel 718 Sheet icon

Inconel 718 Sheet

0.254mm 4mm

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    Beneficial Properties

    • Shock-resistant Their coefficient thermal expansion makes the seal resistant to shock and cracking
    • Flexibility Good workability, weldability and easy to machine
    • Durability Strong performance, toughness and resilience
    • Corrosion-resistant High resistance to certain corrosive environments and elements, fatigue and wear

    Markets & Applications

    • Manufacture of turbine engines, both aircraft and automobile
    • Aerospace components such as: wheels, buckets, spacers and fasteners
    • Manufacture of other equipment and instrumentation parts for industrial machinery
    Call City Special Metals +44 1268 774 261

    Inconel 718 Composition

    Mechanical Properties

    Annealed, Aged
    Yield Strength KSI (MPa) 125
    Tensile Strength KSI (MPa) 180
    Hardness HB 109
    Elongation 50mm 10 (%)

    Technical Specifications

    ASTM UNS Werkstoff Other
    B637 N07718 2.4668 API 6A 718


    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

    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

    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.

    Speak to City Special Metals today if you have an questions or would like to speak to us about Inconel 718 or any of our other speciality alloys. Get in touch by either calling us or messaging us using any of the contact forms on our website.

    Call City Special Metals +44 1268 774 261

    We offer a bespoke service so, if you don’t see the size or form that you require, contact us either by phone, email or our contact form below, and we will provide a solution to your requirements.