Inconel Alloy 625 is a non-magnetic, corrosion and oxidation resistant, nickel-chromium alloy. The high strength of Inconel 625 is the result of the stiffening combination of molybdenum and niobium on the nickel chromium base of the alloy. Inconel 625 has tremendous resistance to a wide range of unusually severe corrosive environments including high-temperature effects such as oxidation and carburization. Its outstanding strength and toughness in temperature ranges from cryogenic temperatures to high temperature up to 2000° F (1093° C) are derived primarily from the solid solution effects of the refractory metals Columbium and molybdenum in a nickel-chromium matrix.
% |
Ni |
Cr |
Fe |
Mo |
Nb+Ta |
Co |
C |
Mn |
Si |
S |
Al |
Ti |
P |
Min. |
58.0 |
20.0 |
- |
8.0 |
3.15 |
- | - | - | - | - |
- |
- | - |
Max. |
- |
23.0 |
5.0 |
10.0 |
4.15 |
1.0 |
0.1 |
0.5 |
0.5 |
0.015 |
0.4 |
0.4 |
0.015 |
Density
|
8.4 g/cm³
|
Melting point
|
1290-1350 ℃
|
Status
|
Tensile strength
Rm N/mm² |
Yield strength
Rp 0. 2N/mm² |
Elongation
As % |
Brinell hardness
HB
|
Solution treatment
|
827
|
414
|
30
|
≤220
|
AMS 5599, AMS 5666, AMS 5837, ASME SB 443 Gr 1, ASME SB 446 Gr 1, ASTM B 443 Gr 1, ASTM B 446 Gr 1, EN 2.4856, ISO 15156-3, NACE MR0175-3,
UNS N06625, Werkstoff 2.4856
Wire | Sheet | Strip | Rod | Pipe | |
AMS 5599, AMS 5666,AMS 5837, AMS 5979,ASTM B443 | ASTM B443 | AMS 5599, AMS 5979,ASTM B443 | ASTM B 446 SAE/AMS 5666,
VdTÜV 499
|
Seamless Pipe | Welded Pipe |
ASTM B 444/B 829 & ASME SB 444/SB 829SAE/AMS 5581 | ASTM B704/B751 ASME SB704/SB 751ASTM B705/B 775 , ASME SB 705/SB 775 |
1.High creep-rupture strength
2.Oxidation resistant to 1800°F
3.Good fatigue resistance
4.Excellent weldability
5.Outstanding resistance to chloride pitting and crevice corrosion
6.Immune to chloride ion stress corrosion cracking
7.Resistant to seawater under both flowing and stagnant conditions and under fouling
• Aircraft ducting systems
• Jet engine exhaust systems
• Engine thrust-reverser systems
• Bellows and expansion joints
• Turbine shroud rings
• Flare stacks
• Seawater components
• Chemical process equipment handling mixed acids both oxidizing and reducing.