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High-Performance Nickel Alloy GH4738 for Extreme Environments

Superalloy Series

High-Performance Nickel Alloy GH4738 for Extreme Environments

Nickel Alloy GH4738 is a high-performance, nickel-based superalloy designed to excel in the most demanding environments. With its superior strength, exceptional resistance to oxidation and corrosion, and remarkable stability at high temperatures, GH4738 is ideal for applications in aerospace, power generation, and other industries requiring reliable performance under extreme conditions. This alloy offers excellent creep resistance and fatigue strength, ensuring long-lasting durability and efficiency. Choose Nickel Alloy GH4738 for your critical high-temperature applications and experience unmatched reliability and performance.

    CHEMICAL COMPOSITION

    ERAUM

    %

    C

    Si

    Mn

    P

    S

    Cr

    Ni

    Mo

    Cu

    Al

    Ti

    Fe

    Co

    B

    Zr

    GH4738

    MIN

    0.03

    -

    -

    -

    -

    18.0

    balance

    3.5

    -

    1.20

    2.75

    -

    12.0

    0.003

    0.02

    MAX

    0.10

    0.15

    0.10

    0.015

    0.015

    21.0

    balance

    5.0

    0.10

    1.60

    3.25

    2.00

    15.0

    0.01

    0.08

    Physical Properties

    density

    Melting temperature range

    ρ=8.22g/cm

    1330-1360℃

    EXECUTIVE STANDARD

    Standard No. & Variety

    sample state

    Plate thickness 8/mm

    Tensile properties

    730°C Durability

    Room temperature hardness

    θ/℃

    Tensile strength
    Rm N/mm2

    yield strength
    Rp0.2 N/mm2

    A5%

    σ/MPa

    Time/h

    A%

    QJ/DT01.63026
    Cold Rolled Strip

    Supply state
    +995°C earth 15°C×
    2.0h±0.25h/AC
    or faster cold
    + stabilization + aging

    ≤0.50

    20

    ≥1170

    ≥760

    ≥15

     

    -

    L

    (34 to 44) HRC or equivalent

    540

    ≥1000

    ≥690

    ≥13

     

    -

     

     

    >0.50

    20

    ≥1205

    ≥795

    ≥20

    -

     

    -

    (34 to 44) HRC or equivalent

    540

    ≥1035

    ≥725

    ≥15

     

     

    -

     

    >0.40~0.50

     

     

     

     

    430

    ≥23

    ≥4

     

    >0.50

     

     

     

     

    430

    ≥23

    ≥4

     

    Product FEATURE

    GH738 is a nickel-based high-temperature alloy hardened by γ' phase precipitation, with good gas corrosion resistance, high yield strength and fatigue properties, good process plasticity and stable organization. Widely used in aircraft engine rotating parts, the use of temperature is not higher than 815 ℃. It can produce cold rolled and hot rolled plates, pipes, strips, wires, forgings, castings and fasteners.

    Product application

    Aircraft engines, machine gas turbines, turbine blades and turbine disks and other rotating parts.

    Product Dispaly

    • GH44 (30)uzu
    • GH44 (22)ex0
    • GH44 (24)qli