Inconel 625(NO6625)
he alloy is a solid solution-reinforced nickel-based deformed superalloy with molybdenum niobium as the main strengthening element. it has excellent corrosion resistance and high oxidation performance. from low temperature to high temperature 980℃, it has good tensile and fatigue properties, and it is also resistant to stress corrosion under salt mist atmosphere. Therefore, it can be widely used in the manufacture of aeroengine parts, aerospace structural parts and chemical equipment.
Inconel 625 common number corresponding
|
Category |
General name |
Number of German marks |
Unified Digital Number Number Number |
|
Ni-Cr-Fe |
Inconel 625 60Ni22Cr9Mo3.5Cb |
2.4856 |
N26625 |
Inconel 625 corresponding casting forgings and bar grades
|
Cast castings |
Forgings (similar deformed alloys) |
Bar |
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|
Specification No. |
Licence |
Specification No. |
Licence |
Specification No. |
Licence |
|
ASTM A 494 |
CW-6MC |
ASME B 564 |
N06625 |
ASME B 446 |
NO6625 |
Inconel 625 other brands corresponding
|
Name |
GB of China |
ASTM of the United States |
DIN Germany |
British BS |
AFNOR France |
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|
New brand |
Old brand |
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|
Inconel 625 |
NS3306 |
NS336 |
UNS N06625 |
W.Nr.2.4856(NiCr22Mo9Nb) |
NA21 |
NC 22DNb |
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Inconel 625 physical properties: |
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|
Density |
Melting point |
Thermal conductivity |
Specific heat capacity |
Elastic modulus |
Shear modulus |
resistivity |
Poisson's ratio |
Line expansion coefficient |
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|
g/cm3 |
℃ |
λ/(W/m•℃) |
J/kg•℃ |
GPa |
GPa |
μΩ•m |
a/10-6℃-1 |
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|
8.44 |
1290 |
12.1(100℃) |
430 |
205 |
79 |
1.28 |
0.308 |
12.3(20~100℃ |
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Inconel 625 chemical composition
|
Licence |
UNS No. |
Chemical element% |
C |
Mn |
Si |
P |
S |
Mo |
Fe |
Ni |
Cr |
Cb(Nb) |
Ksi[Mpa] of minimum tensile strength |
Minimum yield strength Ksi[Mpa] |
Minimum elongation,% gauge 2 inches |
|
CW6MC |
N26625 |
Max |
0.06 |
1.00 |
1.00 |
0.015 |
0.015 |
8.0-10.0 |
5.0 |
Balance |
20.0-23.0 |
3.15-4.5 |
70[485] |
40[275] |
25 |
Inconel 625 temperature range
|
General name |
Specification No. |
Licence |
Temperature range |
|
Inconel 625 |
ASTM B 564 |
N06625 |
Suitable temperature ≤700℃, flange end valve ≤538℃ only use annealed material |
Inconel 625 heat treatment requirements
|
Licence |
Heat treatment requirements |
|
CW-6MC |
Heat up to more than 1175℃, keep enough time to heat the casting to this temperature, then quench it in water or otherwise quench it. |
Inconel 625 corrosion properties
|
Medium |
|
Inconel the nickel content in the alloy is much higher than that of stainless steel, the corrosion resistance of alkali sulfide is better than that of stainless steel, and the corrosion resistance of high temperature is better. The corrosion resistance of Ni-Fe alloy is better than that of Ni in oxidizing environment. Because of the high nickel content, it also has good corrosion resistance in reducing environment.Very suitable for reducing acid, pitting corrosion and crevice corrosion. |