Type 625 Alloy (UNS Designation NO6625) is an austenitic nickel-based super alloy possessing excellent resistance to oxidation and corrosion over a broad range of corrosive conditions, including jet engine environments and in many other aerospace and chemical process applications. The alloy has outstanding strength and toughness at temperatures ranging from cryogenic temperature to 2000°F (1093°C). Type 625 alloy also has exceptional fatigue resistance. It derives its strength from the solid solution strengthening effects of molybdenum and columbium on the nickel-chromium matrix. Although the alloy was developed for high temperature strength, its highly alloyed composition provides a high level of general corrosion resistance to a wide range of oxidizing and non-oxidizing environments.
Resistance to Corrosion:
The high level of chromium and molybdenum in Type 625 alloy provides a high level of pitting and crevice corrosion resistance to chloride contamnated media, such as sea water, nuetral salts and brines.
* Possesses a high degree of formability;
* Shows better weldability than many highly alloyed nickel base alloys
* Resitant to intergranular corrosion even in the welded condition
Typical room temperature tensile properties of material annealed at 1920°F(1065°C) as follows:
|Temperature||0.2% Yield Strength||Ultimate Tensile Strength||Elongation percent|
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