UNS N07750 (Inconel X-750)

Short Introduction:

Inconel X-750 / GB GH4145 / UNS N07750/W.Nr.2.4669 NiCr15Fe7TiAl / AFNOR NC15FeT is a precipitation-hard enable alloy which has been used in applications such as high temperature structural members for gas turbines, jet engine parts, nuclear power plant applications, heat-treating fixtures, forming tools, and extrusion dies. The alloy is highly resistant to chemical corrosion and oxidation and has high stress-rupture strength and low creep rates under high stresses at temperatures up to 1500°F (816°C) after suitable heat treatment.

    Category:

    Description

    UNS N07750/GH4145/ Inconel X-750

    Material grades and equivalents

    GH4145 / GB GH4145 / UNS N07750/W.Nr.2.4669 NiCr15Fe7TiAl / AFNOR NC15FeT

    Inconel X750 Chemical composition:

    Alloy

    %

    Ni

    Cr

    Fe

    Nb

    Co

    C

    Mn

    Si

    S

    Cu

    Al

    Ti

    Inconel X750

    Min.

    14

    5

    0.7

    0.4

    2.25

    Max.

    70

    17

    9

    1.2

    1

    0.08

    1

    0.5

    0.01

    0.5

    1

    2.75

    Inconel X750 Physical properties:

    Density

    8.28 g/cm3

    Melting range

    1393-1427℃

    Inconel X750 Alloy     minimum Mechanical properties in the room temperature:

     Alloy

    Tensile strength Rm N/mm2

    Yield strength RP0.2N/mm2

     ElongationA5 %

    Brinell hardness HB

    Solution treatment

    1267

    868

    25

    ≤400

     

    Inconel X750 Characteristic as below:

    Inconel X750  is a precipitation-hard-enable alloy which has been used in applications such as high temperature structural members for gas turbines, jet engine parts, nuclear power plant applications, heat-treating fixtures, forming tools, and extrusion dies. The alloy is highly resistant to chemical corrosion and oxidation and has high stress-rupture strength and low creep rates under high stresses at temperatures up to 1500°F (816°C) after suitable heat treatment.

    Inconel X750 Machinability:

    • Conventional machining techniques used for iron based alloys may be used. This alloy does

    • work-harden during machining and has higher strength and “gumminess” not typical of steels. Heavy duty machining equipment and tooling should be used to minimize chatter or work-hardening of thealloy ahead of the cutting.

    Inconel X750 Corrosion resistance:

    • Inconel X750  has excellent resistance to chloride ion stress-corrosion cracking. It exhibits satisfactory resistance to numerous oxidizing environments. The alloy has similar corrosion resistance to alloy 600 in many media.

    Inconel X750 Application range and field:

    • Nuclear reactors

    • Gas turbines Rocket engines Pressure vessels Aircraft structures

    Specifications:

    Plate

    AMS 5542/ASM 5598/Mil-N-7786

    Forgings

    AMS 5667/AMS 5668/AMS 5669/AMS 5670/AMS 5747/AMS

    B-637