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Inconel X750

Alloy X-750 is a nickel-chromium alloy which has been made precipitation-hardenable by the additions of aluminum and titanium. Alloy X-750 has good resistance to corrosion and oxidation along with high tensile and creep rupture properties at temperature up to 1300ºF (700ºC). Due to X-750's excellent relaxation resistance it is useful for applications as high-temperature springs and bolts, X-750 is also used in gas turbines, rocket engines, nuclear reactors, pressure vessels, tooling and aircraft structures.
Availability:

Chemical Composition:

Grade

%

Ni

Cr

Fe

Nb

Co

C

                    InconelX-750

                    Min

                    Rest

                    14

                    5

                    0.7



                    Max

                    17

                    9

                    1.2

                    1

                    0.08

                    Mn

                    Si

                    S

                    Cu

                    Al

                    Ti

                    P





                    0.4

                    2.25


                    1

                    0.5

                    0.01

                    0.5

                    1

                    2.75

                    0.02


Physical Performance:

Density

8.25 g/cm³



Smelt Point

1395-1425



H*T

T*S

Y*S

El

Hardness

Rm N/mm2

RP0.2N/mm2

A5 %

HB

Solution

910

550

25

≤350



Standard of execution:

Form

ASTM

Rod

B 574

Plate, sheet and strip

B 575

Seamless pipe and tube

B 622

Welded pipe

B 619, B 775

Welded tube

B 626, B 751

Welding fitting

B 366

Forged or rolled pipe flange and forged fitting

B 462

Billet and bar for reforging

B 472

Forging

B 564


Inconel X-750 Characteristic as below:
Inconel X-750 is a precipitation-hardenable 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 X-750 Corrosion resistance:
Inconel X-750 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.

Incoloy X-750 Application range and field:
Nuclear reactors
Gas turbines
Rocket engines
Pressure vessels

Inconel X-750 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 the alloy ahead of the cutting.


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