Inconel 718/UNS N07718

  1. Brief introduction:

    It has quite good combination property during -253~700℃. Its yield strength ranks the first among deformation super alloy when the temperature is below 650℃. 

    The alloy has quite good fatigue strength, anti-radiation, antioxidant property, corrossion resistant performance, and machining, welding performance and long-term structure stability.

    It can be made into complicated shaped components, and has been widespread used in space navigation, nuclear energy and petrochemical industry.


  2. Main specifications:

    Chinese USUSAWerkstoff Nr. 
    GH4169/GH169UNS NO7718Inconel 7182.4668


  3. Chemical composition under ASTM B637 standard:

    Gradechemical composition,%
    NiCSiMnCrSAlFeTiCuNb+TaCoPBMo
    UNS N0771850.0-55.0≤0.08≤0.35≤0.3517.0-21.0≤0.0150.2-0.8Remainder0.65-1.15≤0.34.75-5.5≤1.0≤0.015≤0.0062.8-3.3

    Fe element shall be determined arithmetically by difference.


  4. Main product types:

    wire,rod, bar,strip,sheet/plate,tube/pipe.


  5. Main produce standards:

    Wirerod, Bar, forgingSheet/StripTube
    AMS 5832 ASTM B637         
    ASME SB-637
    API 6A
    ASTM B670AMS 5589C