Inconel X 750 The Aging Strengthening Nickel Based Superalloy - China

InconelX-750(NO7750) the aging strengthening nickel-based superalloy

Features and applications overview: InconelX-750 is a nickel-base

superalloy aging strengthened by γ'[Ni3(Al, Ti, Nb)]

phase, and has good corrosion resistance and oxidation resistance under

980°C, rather high strength under 800°C, quite good resistance under

540°C.

It also has good formability and weldability.

The alloy is mainly

for manufacturing high-strength and corrosion resistant annulus parts,

structural parts, bolts, and other parts of aircraft engine operating at

800°C, and flat springs and coil springs with medium or lower stress and

relaxation resistance working at 540°C.

It can also be used for

manufacturing turbine blades of gas turbine and other parts.

InconelX-

750's similar grades: GH4145

GH145(China), NCl5FeTNbA(France), W.

Nr.

2.4668

NiCr15Fe7TiAl(Germany) NCF750(Japan) Chemical composition, %: Nickel +

Cobalt.

.

70 min Chromium.

.

14.0-


17.0 Iron.

.

5 .

0-9.0

Carbon.

.

0 .

08 max

Manganese.

.

1.0 max

Silicon.

.

.

0.05 max

Sulfur.

.

.

0.01 max

Copper.

.

.

0.5 max Aluminium.

.

0.4-

1.0 Titanium.

.

2 - 35-2.75 Physical

properties Density, g/cm3 .

.

8.25 Melting

Range, °C.

1 395-1425 Thermal conductivity,

λ/(W/m•°C), at 100°C .

14.7 Specific heat,

J/kg•°C.

.

430 Elastic modulus, GPa.

214

Electrical resistivity, μΩ•m.

1.2 2 Coefficient of linear

expansion,

a/10-6°C-1, at 20-100°C.

13 - 1

Mechanical properties (the minimum value detected at room temperature)

Tensile strength, σb/MPa.

930

Yield strength, σp0.2/MPa.

51 5

Elongation, σ5 /%.

.

30

The way of heat treatment is solution treatment

Available products and specifications:

Bar: ASTM B637, AMS 5667, AMS 5668, AMS 5669, AMS 5670, AMS 5671, AMS 5741, AMS 5749, ASME SB637

Forging: ASTM B637, AMS 5667, AMS 5668, AMS 5670, AMS 5671, AMS 5747, AMS 5749, ASME SB637

Plate/Strip: AMS 5542, AMS 5598

Wire: AMS 5698, AMS 5598

Pipe: AMS 5582

The metallurgical structure of Inconel X-750:

The structure of the alloy in the state of standard heat-treatment consists of γ matrix, Ti(C, N), Nb(C, N), M23C6 carbides and γ'[Ni3(Al, Ti, Nb)] phase.

γ' is the main strengthening phase of the alloy and it accounts for 14.5%.

The process performance and requirements of Inconel X-750:

The alloy is easy to shape when the forging temperature is between 950 and 1220°C.

The solution treatment follows the intense molding step.

The average size of the grain size of the alloy is closely related to the forging deformation degree and the final forging temperature.

The alloy has good weldability and is suitable for any welding.

Aging treatment after welding enables the alloy to obtain the strength of near perfect heat treatment.

The heat processing of the parts shall be operated in the sulfur-free neutral or reducing atmosphere in order to avoid vulcanization.

Inconel X 750 The Aging Strengthening Nickel Based Superalloy

Please see our contact information below

Company Contact:

• Posted By: Shanghai Kangsheng Superalloy Co., Ltd

• Phone: 8602169925078

• Address: 1355#,Chengbei road, Jiading District, Shanghai, Shanghai , China

• Email:

• Business Description: involved in international trade import export of goods, products, and services