Alloy 825 UNS N08825: Properties, Applications, and Performance Guide
Alloy 825 UNS N08825 is a nickel-iron-chromium alloy with additions of molybdenum and copper, designed for excellent corrosion resistance in a wide range of aggressive environments. It is stabilized with titanium to prevent sensitization and intergranular corrosion. This material is known for its high strength and outstanding performance in both oxidizing and reducing conditions.
Key Properties
The alloy offers exceptional resistance to sulfuric and phosphoric acids, along with good mechanical properties at elevated temperatures. Its composition ensures durability in corrosive media, making it a top choice for demanding industrial applications.
Common Applications
Alloy 825 is widely used in chemical processing, pollution control, nuclear fuel reprocessing, and acid production. It is ideal for heat exchangers, piping systems, and pickling equipment due to its reliability and longevity.
Performance Advantages
Users benefit from its weldability, formability, and resistance to stress-corrosion cracking. These attributes make Alloy 825 UNS N08825 a versatile solution for harsh operational environments.
Frequently Asked Questions
What makes Alloy 825 suitable for acidic environments?
Its nickel content provides inherent resistance, while molybdenum and copper enhance performance in reducing conditions.
Can it be used in high-temperature applications?
Yes, it maintains strength and corrosion resistance up to around 540°C (1000°F).
How does it compare to other nickel alloys?
It offers a balanced combination of cost-effectiveness and performance, especially in sulfuric acid services.
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