Inconel 625high Temperature Alloy - China

Inconel 625 high temperature alloy Features and applications overview:

Inconel 625 is solid solution nickel-based superalloy strengthened by

molybdenum and niobium.

The alloy has excellent corrosion and oxidation

resistance.

From low temperature to 950°C, it has good tensile and

fatigue properties, and it is resistant to stress corrosion in salt fog

atmosphere.

Therefore, it can be widely used in the manufacture of

aviation engine parts, aerospace structural components and chemical

equipment.

Inconel 625's similar grades: NS336 GH3625

GH625(China), NC22DNb(France), W.

Nr.

2.4856(Germany)

chemical composition, %:

Nickel.

.

b alance Chromium.

.

20.0-


23.0 Iron.

.

5 .

0 max Niobium.

.

3.15-

4.15 Molybdenum.

.

8.0-10.0

Cobalt.

.

.

1.0 max

Carbon.

.

0.1 max

Manganese.

.

0.5 max

Silicon.

.

.

0.5 max

Sulfur.

.

.

0.015 max

Phosphorus.

.

0 - 015 max

Copper.

.

.

0.07 max

Aluminium.

.

0 - 4 max

Titanium.

.

.

0.4 max Physical

properties: Density, g/cm3 .

.

8.44 Melting

Range, °C.

.

1290-1350 Thermal conductivity,

λ/(W/m•°C), at 100°C .

12 .

1 Specific heat,

J/kg•°C.

.

430 Elastic modulus,

GPa.

.

205 Shear modulus,

GPa.

.

79 Electrical resistivity,

μΩ•m.

.

1.28 Poisson's

ratio.

.

0.308 Coefficient of linear

expansion,

a/10-6°C-1, at 20-100°C.

12 - 3

Mechanical properties : ( the minimum value detected at room temperature)

Tensile strength, σb/MPa.

830

Yield strength, σp0.2/MPa.

410

Elongation, σ5 /%.

.

30

Brinell hardness, HBS.

.

≤290

The way of heat treatment is solution treatment

Available products and specifications:

Bar: ASTM B446, AMS 5666, ASME SB446

Forging: ASTM B446, AMS 5666, ASME SB446

Plate/Strip: ASTM B443, AMS 5599, ASME SB443

Wire: AMS 5837

Pipe: ASTM B444, ASTM B704, ASTM B705, AMS 5581, ASME SB444

The metallurgical structure of Inconel625:

In the solid solution state, the alloy is austenitic matrix and phase of a amount of TiN, NbC and M6C.

After long-term aging of 650-900°C, the phase of precipitation is γ', δ, M23C6 and M6C.

The process performance and requirements of Inconel625:

The alloy has good hot and cold formability.

The ingot forging heating temperature is 1120°C.

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.

The alloy can be argon arc welded using tungsten electrode under protective atmosphere or can be treated as additional material to do argon arc welding.

It also can be used in brazing connection and resistance seam welding.

Surface treatment process: caustic wash before removing the alloy surface oxide, then pickling in the pin acid, hydrofluoric acid, and aqueous solution.

In cold processing when the amount of processing is larger than 15%, annealing shall be carried out after heat processing.

Inconel 625high Temperature Alloy

Thank you in advance for your consideration

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