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, copper, and titanium. This robust material is specifically designed to withstand corrosive environments, making it ideal for demanding industrial applications.
Key Properties and Composition
The chemical composition includes approximately 42% nickel, 30% iron, and 21.5% chromium, providing excellent resistance to oxidation and carburization. Key mechanical properties feature high tensile strength and outstanding creep rupture strength at elevated temperatures.
Industrial Applications
Common uses span chemical processing equipment, nuclear fuel reprocessing systems, and acid production plants. Its versatility also extends to pollution control and petroleum refining applications where sulfuric and phosphoric acid resistance is critical.
Performance Benefits
Primary advantages include exceptional resistance to reducing and oxidizing acids, along with superior stress-corrosion cracking prevention. The material maintains structural integrity in both aqueous corrosion and high-temperature service conditions.
Frequently Asked Questions
What makes Alloy 825 suitable for sour gas environments?
The nickel content provides inherent resistance to chloride-ion stress-corrosion cracking, while molybdenum enhances protection against pitting and crevice corrosion.
How does it compare to stainless steel?
Unlike standard stainless steels, Alloy 825 delivers superior performance in sulfuric acid applications and offers better overall corrosion resistance in complex chemical environments.
Technical Specifications Deep Dive
For comprehensive material data sheets and technical specifications, visit our dedicated resource page for Alloy 825 UNS N08825 to access complete mechanical properties and corrosion resistance charts.
Material Selection Guidance
When selecting materials for aggressive environments, consider factors like temperature extremes, pH levels, and presence of chlorides. Alloy 825 typically outperforms alternatives in multi-corrosive scenarios.
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