Alloy 825 UNS N08825 Overview
Alloy 825 UNS N08825 is a nickel-iron-chromium alloy with additions of molybdenum, copper, and titanium. This material is known for its excellent resistance to corrosion in various aggressive environments, including acids and alkaline solutions. Its balanced composition makes it suitable for demanding industrial applications where reliability and longevity are critical.
Chemical Composition and Mechanical Properties
The chemical composition of Alloy 825 includes approximately 38-46% nickel, 19.5-23.5% chromium, and 2.5-3.5% molybdenum. These elements contribute to its high strength and outstanding corrosion resistance. Key mechanical properties include a tensile strength of 586 MPa and yield strength of 241 MPa, ensuring durability under stress.
Common Applications in Industry
Alloy 825 UNS N08825 is widely used in chemical processing, oil and gas, and marine engineering. It performs exceptionally well in sulfuric and phosphoric acid environments, making it ideal for heat exchangers, pickling tanks, and offshore platforms. Its versatility also extends to nuclear fuel reprocessing and pollution control equipment.
Frequently Asked Questions
What makes Alloy 825 resistant to corrosion? The high nickel and chromium content, along with molybdenum, provides protection against oxidizing and reducing media.
Can Alloy 825 be welded easily? Yes, it is weldable using common techniques like TIG and MIG, with proper filler materials to maintain corrosion resistance.
Where can I source high-quality Alloy 825 materials? For reliable Alloy 825 UNS N08825, visit trusted suppliers offering certified products for industrial use.
Performance and Selection Guide
When selecting Alloy 825, consider factors like operating temperature, exposure to corrosive agents, and mechanical load requirements. Its performance in high-temperature settings up to 540°C makes it a top choice for heat-treated components and furnace parts.
Long-Term Durability and Maintenance
With proper maintenance, Alloy 825 components offer extended service life. Regular inspections and cleaning help prevent pitting and stress corrosion cracking, ensuring optimal performance in harsh conditions.
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