Alloy 825 UNS N08825: Properties, Applications, and Benefits

Alloy 825 UNS N08825: Properties, Applications, and Benefits

Alloy 825 UNS N08825 is a nickel-iron-chromium alloy with additions of molybdenum and copper, designed for exceptional corrosion resistance in aggressive environments. This material is stabilized with titanium to prevent sensitization and intergranular corrosion, making it ideal for high-temperature and acidic applications.

Key Properties and Characteristics

The alloy offers outstanding resistance to reducing and oxidizing acids, stress-corrosion cracking, and localized corrosion. Its high nickel content provides stability in chloride-ion environments, while molybdenum enhances pitting and crevice corrosion resistance.

Industrial Applications

Common uses include chemical processing, nuclear fuel reprocessing, acid production, and marine engineering. It is widely employed in heat exchangers, piping systems, and pickling equipment due to its durability.

Benefits and Advantages

Key benefits include long service life, reduced maintenance costs, and reliability under extreme conditions. Its weldability and formability add to its versatility in fabrication.

Frequently Asked Questions

What is Alloy 825 UNS N08825 best used for?

It excels in acidic and high-temperature environments, such as sulfuric acid handling and offshore applications.

How does it compare to other nickel alloys?

It offers a balanced combination of corrosion resistance, strength, and cost-effectiveness compared to alternatives like Hastelloy.

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