Alloy 825 UNS N08825: Properties, Applications, and Benefits

Alloy 825 UNS N08825 is a nickel-iron-chromium alloy with additions of molybdenum and copper. This material is highly resistant to corrosion in various aggressive environments, making it a top choice for demanding industrial applications. Its unique composition ensures excellent performance in both oxidizing and reducing conditions.

Key Properties of Alloy 825

The alloy offers outstanding resistance to sulfuric and phosphoric acids, along with superior stress corrosion cracking resistance. It maintains strength and durability at high temperatures, which is crucial for heat-intensive processes. Additionally, its resistance to pitting and crevice corrosion in chloride-containing media adds to its reliability.

Common Applications

Alloy 825 is widely used in chemical processing, pollution control, acid production, and nuclear fuel reprocessing. It serves in heat exchangers, pickling tanks, and offshore oil and gas components, where harsh conditions demand robust materials.

Frequently Asked Questions

What makes Alloy 825 suitable for sulfuric acid environments?
Its high nickel content and balanced composition provide exceptional resistance to sulfuric acid, even at elevated temperatures.

Can Alloy 825 be welded easily?
Yes, it exhibits good weldability using common techniques like TIG and MIG, with matching filler materials for optimal results.

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