Nickel Alloy Inconel 783 UNS R30783

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Short Introduction:

HY 783 /Inconel 783 / Alloy 783 / UNS R30783  is an oxidation resistant low coefficient of thermal expansion (low CTE) superalloy developed for gas turbine applications.The alloy is strengthened by a precipitation-hardening heat treatment made possible by additions of niobium and aluminum. In addition, the aluminum content provides excellent resistance to oxidation at high temperature.


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  • Product Detail

    Product Tags

    HY 783 Material grades and equivalents

    Inconel 783 / Alloy 783 / UNS R30783

         An oxidation resistant low coefficient of thermal expansion (low CTE) superalloy developed for gas turbine applications.

    The alloy is strengthened by a precipitation-hardening heat treatment made possible by additions of niobium and aluminum. In addition, the aluminum content provides excellent resistance to oxidation at high temperature.

    The alloy’s density is 5% less than those of superalloys such as INCONEL alloy 718. The combination of low expansion, high strength and excellent resistance to oxidation makes the alloy especially useful for gas turbine and steam turbine components.

    The low expansion enables closer control of clearances and tolerances for greater power output and fuel efficiency.

     

    Table 1 - Limiting Chemical Composition*, %

    Chromium……………………………………………………………. 2.5-3.5

    Nickel ……………………………………………………………….26.0-30.0

    Iron ……………………………………………………………………24.0-27.0

    Niobium…………………………………………………………………2.5-3.5

    Aluminum………………………………………………………………5.0-6.0

    Cobalt………………………………………………………………Remainder

    Boron……………………………………………………………..0.003-0.012

    Carbon………………………………………………………………0.03 max.

    Manganese………………………………………………………..0.50 max.

    Silicon……………………………………………………………….0.50 max.

    Phosphorus……………………………………………………..0.015 max.

    Sulfur ……………………………………………………………….0.005 max

    Titanium…………………………………………………………………0.1-0.4

    Copper……………………………………………………………….0.50 max

     

    Physical Properties

     

    Table 2 - Physical Constants

    Density, g/cm3…………………………………………………………..7.81

    lb/in3………………………………………………………….0.282

    Melting Range, °F ……………………………………………..2437-2565

    °C …………………………………………….1336-1407

    Specific Heat, Btu/lb•°F (77°F)……………………………………0.109

    J/kg•°C (25°C)……………………………………….455

    Regular shape for all kinds of alloys
    FormSpecificationSupply FormOthers
    SheetThickness:0.40-4.75mm,General Width:1000、1219、1500mmWhole Coil or piece of itCold Annealed,Surface 2B、2E
    PlateThickness:4.76-60mm,Width:1500、2000、2500mm,Length:3000、6000、8000、8500mm(Under 10mm plate can be coiled)Whole Coil or piece of itSingle hot rolling,Solid solution annealed state,Surface 1D
    BeltThickness:0.10-3.0mm,Width:50-500mmWhole Coil or Specified sizeCold Annealed,Surface 2B、2E
    Bar & RodRolled barΦ5-45mm,Length≤1500mmPolished Bar(circle、Square)Solution annealing,descaling
    Forged barΦ26-245mm,Length≤4000mm
    Weld tubeOuter diameterΦ4.76-135mm,Wall Thickness0.25-4.00mm,Length:≤35000 mmBase on your requirement
    Seamless TubeOuter diameterΦ3-114mm,Wall Thickness0.2-4.5mmBase on your requirement
    WireOuter diameterΦ0.1-13mmBase on your requirementNi & Ni alloy, Ti & Ti alloy
    Forged piecediscs,rings,squares,blocks,slabsBase on your requirementSteel, Alloy
    FlangsAll kinds of FlangsBase on your requirementSteel, Alloy
    Welding MaterialCoil wire Φ0.025mm-1.6mmBase on your requirementCertificate of Origin:America, Sweden, Britain, Germany, Austria, Italy, France.
    Straight WireΦ1.6mm-4.0mm
    Welding rodΦ1.2mm-4.0mm
    TubeElbow, three links, four links, different diameter sizeBase on your requirementNi & Ni alloy, Ti & Ti alloy
    Explosive bonded laminateRaw Sheet Thickness≥2mmBase on your requirementNi & Ni alloy, Ti & Ti alloy





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