About Alloy
The Inconel 625 (UNS N06625, 2.4856) is composed primarily of nickel, with significant additions of chromium and molybdenum. These alloying elements contribute to its outstanding resistance to a wide range of corrosive environments, including seawater, acids, and alkalis. It exhibits excellent resistance to pitting, crevice corrosion, and intergranular attack, making it suitable for applications in aggressive chemical environments.
One of the key attributes of Inconel 625 is its high strength and toughness at both room and elevated temperatures. It retains its mechanical properties even at extreme conditions, including temperatures up to approximately 1,000°C (1,800°F). This makes it well-suited for applications in high-temperature environments such as gas turbines, heat exchangers, and furnace components.
In addition to its corrosion resistance and high-temperature strength, Inconel 625 offers good fatigue resistance and excellent weldability. It can be readily welded using various techniques, including gas tungsten arc welding (GTAW) and electron beam welding (EBW), while maintaining its desired properties and corrosion resistance.
The versatility of Inconel 625 is reflected in its wide range of applications. It is commonly used in aerospace components, chemical processing equipment, marine applications, and oil and gas industry equipment. Examples of specific applications include turbine engine components, exhaust systems, seals, valves, and offshore structural components.
Overall, Inconel 625 is a highly reliable and versatile alloy that combines excellent corrosion resistance, high-temperature strength, and good weldability. Its exceptional performance in challenging environments has made it a preferred choice for critical applications where reliability and durability are paramount.
With excellent resistance to corrosion and oxidation, Inconel alloy 625 can be perfectly used for superheat and severely corrosive environments. In addition to this, the high temperature alloy shows outstanding tensile and thermal-fatigue strength in the service temperatures ranging from cryogenic to 980℃, and good resistance to stress corrosion cracking in salt atmosphere.
Product Form
Bar: ASTM B446, AMS 5666,
Forging: ASTM B564, AMS 5666,
Sheet/Plate/Strip: ASTM B443, AMS5869, AMS5599, MAM 5599
Wire: ASTM B446, AMS5837
Pipe: ASTM B444, ASTM B704, ASTM B705, ASTM B829, ASTM B751
Fitting: ASTM B366
Chemical Composition
|
Composition |
Ni |
Cr |
Mo |
Nb |
Fe |
Al |
Ti |
C |
Mn |
Si |
Co |
P |
S |
|
|
Content (%) |
Min. |
Bal. |
20 |
8 |
3.15 |
|||||||||
|
Max. |
23 |
10 |
4.15 |
5 |
0.4 |
0.4 |
0.1 |
0.5 |
0.5 |
1 |
0.015 |
0.015 |
||
Property
| Material | Form and Condition | Tensile Strength | Yield Strength | Elongation 4D(%) | Hardness HB | ||
| Ksi | MPa | Ksi | MPa | ||||
| Alloy 625 Bar | Annealed | 120 | 827 | 60 | 414 | 30 | ≤ 287 HB |
| Alloy 625 Sheet | Annealed | 120 | 827 | 60 | 414 | 30 | 145-240 |
| Alloy 625 Tube Seamless and Welded | Annealed | 120 | 827 | 60 | 414 | 35 | - |
Application
Since these properties, our Inconel 625 nickel alloy earns wide acceptance in organic chemistry processing field where acid chloride catalyst is typically utilized, and can be used for digester and bleacher in paper industry.
Nuclear reactor-cores and control-rod components
Wire rope for cables and blades on Naval crafts such as gunboats and subs
Oceanographic equipment
Rings and tubing for environmental control systems
Meets ASME code for Boiler and Pressure Vessels
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