Inconel625 (NO6625)

Inconel625 (NO6625)

Incone l625 description of characteristics and application areas:

Here is molybdenum niobium alloy as the main elements of the deformation of solid solution strengthening type nickel-based high-temperature alloy, with excellent corrosion and oxidation resistance, from low temperature to 980 ℃ has good tensile performance and fatigue performance, and stress corrosion resistance to salt fog atmosphere. Therefore, can be widely used in the manufacture of aircraft engine components, aerospace structural parts and chemical equipment.

Incone l625 similar grades:

NS336 GH3625 GH625 (China), NC22DNb (France), W.N r. 2.4856 (Germany)

Incone l625 chemical composition:

Ni Ni Cr alloy nameplate % Fe Cr iron molybdenum cobalt Co Mo niobium Nb carbon manganese silicon Mn Si S S C aluminum copper Cu Al Ti Ti

Inconel625 minimum allowance of 20.0 20.0 3.15

Biggest 23.0 5.0 10.0 4.15 1.0 0.10 0.5 0.5 0.015 0.07 0.4 0.4

Inconel625 properties:

G/cm3 density lambda / ℃ melting point thermal conductivity (W/m ℃), specific heat, J/kg ℃, the elastic modulus of GPa GPa resistivity mu Ω shear modulus, linear expansion coefficient of the a/m poisson's ratio 10-6 ℃ - 1

8.44 1290

1350 (100 ℃) 430 205 79 12.1 1.28 0.308 12.3 (20 ~ 100 ℃)

Inconel625 mechanical properties: (in 20 ℃ test mechanical properties of the minimum)

Heat treatment way sigma b/MPa tensile strength and yield strength sigma p0.2 / MPa elongation sigma 5 / % brinell hardness HBS

Solid solution treatment 30, 830, 410, 290 or less

Inconel625 production standards:

Standard rod forgings board (belt) wire tube

The American association of materials and test ASTM B446 ASTM B446 ASTM B443 ASTM B444

ASTM B704

ASTM B705

U.S. aerospace material specification AMS 5666 AMS 5666 AMS 5599 AMS 5837 AMS 5581

The American society of mechanical engineers ASME SB446 ASME SB446 ASTM SB443 ASME SB444

Inconel625 metallographic organization structure:

The alloy in the solid solution of the state of the organisation for austenitic matrix and a small amount of TiN, NbC, and M6C phase, from 650 ~ 900 ℃ after aging for a long time, precipitate phase for gamma and delta, M23C6 and M6C."

Inconel625 process performance and requirements:

1, the alloy has good cold and hot forming performance, ingot forging heating temperature 1120 ℃.

2, the grain size of alloy, average size and the degree of the deformation of the forging, finish forging temperature are closely related.

3, alloy welding performance is good, can use tungsten electrode under protective atmosphere or their alloys for add material in argon arc welding and brazing connection and resistance seam welding is also available.

4, surface treatment technology: to remove the surface scale alloy alkaline wash first, then the pin acid, hydrofluoric acid, acid in aqueous solution.

5, alloy cold when processing capacity is greater than 15%, while after the thermal annealing treatment.