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
    Form Specification Supply Form Others
    Sheet Thickness:0.40-4.75mm,General Width:1000、1219、1500mm Whole Coil or piece of it Cold Annealed,Surface 2B、2E
    Plate Thickness:4.76-60mm,Width:1500、2000、2500mm,Length:3000、6000、8000、8500mm(Under 10mm plate can be coiled) Whole Coil or piece of it Single hot rolling,Solid solution annealed state,Surface 1D
    Belt Thickness:0.10-3.0mm,Width:50-500mm Whole Coil or Specified size Cold Annealed,Surface 2B、2E
    Bar & Rod Rolled barΦ5-45mm,Length≤1500mm Polished Bar(circle、Square) Solution annealing,descaling
    Forged barΦ26-245mm,Length≤4000mm
    Weld tube Outer diameterΦ4.76-135mm,Wall Thickness0.25-4.00mm,Length:≤35000 mm Base on your requirement
    Seamless Tube Outer diameterΦ3-114mm,Wall Thickness0.2-4.5mm Base on your requirement
    Wire Outer diameterΦ0.1-13mm Base on your requirement Ni & Ni alloy, Ti & Ti alloy
    Forged piece discs,rings,squares,blocks,slabs Base on your requirement Steel, Alloy
    Flangs All kinds of Flangs Base on your requirement Steel, Alloy
    Welding Material Coil wire Φ0.025mm-1.6mm Base on your requirement Certificate of Origin:America, Sweden, Britain, Germany, Austria, Italy, France.
    Straight WireΦ1.6mm-4.0mm
    Welding rodΦ1.2mm-4.0mm
    Tube Elbow, three links, four links, different diameter size Base on your requirement Ni & Ni alloy, Ti & Ti alloy
    Explosive bonded laminate Raw Sheet Thickness≥2mm Base on your requirement Ni & Ni alloy, Ti & Ti alloy





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