INCOLOY 825 UNS Number N08825

Product Advantages

1. Superior Corrosion Resistance
   INCOLOY 825 offers unmatched corrosion resistance in both reducing and oxidizing environments. It resists general corrosion, pitting, crevice corrosion, and stress-corrosion cracking. This makes it ideal for harsh environments such as chemical processing and acid production. Whether dealing with sulfuric acid, phosphoric acid, or seawater, this alloy maintains its integrity and extends equipment life.

   
   

2. High-Temperature Endurance
   This alloy withstands high-temperature environments without compromising its strength. With a broad operating temperature range, INCOLOY 825 can endure temperatures up to 1000°F (537°C) in oxidizing conditions, making it perfect for industrial applications that require both strength and corrosion resistance at elevated temperatures.

   
   

3. Stress-Corrosion Cracking Resistance
   INCOLOY 825 excels in its resistance to stress-corrosion cracking (SCC), a common issue in industries where metals are exposed to both tensile stress and corrosive environments. This property is particularly valuable in applications such as pollution control and nuclear fuel reprocessing, where equipment is subjected to both mechanical stress and corrosive fluids.

   
   

4. Versatile Application
   This alloy's composition ensures versatility across a range of industries, from chemical processing to nuclear fuel reprocessing. It performs exceptionally well in pollution-control systems, oil and gas pipelines, and in manufacturing equipment exposed to severe conditions. This makes INCOLOY 825 a go-to material for industries looking for durable, corrosion-resistant solutions.

   
   

5. Compliance with ASTM Standards
   INCOLOY 825 meets the strict ASTM standards for stainless steel alloys, ensuring reliable quality and performance. It is available in various forms including stainless steel coil pipe, stainless steel coil tube, and stainless steel condenser coil, making it highly adaptable for different industrial needs.

   
   

6. Enhanced Durability and Maintenance Savings
   Thanks to its superior resistance to corrosion, INCOLOY 825 significantly reduces the need for frequent maintenance and repairs, leading to lower overall operational costs. The long-lasting nature of the material translates into savings on replacement and downtime, increasing the cost-effectiveness of its use in demanding applications.

Alloy 825 (UNS N08825) Chemical Composition, %

Product Uses

1. Chemical Processing Equipment
   INCOLOY 825 is commonly used in chemical processing plants due to its excellent resistance to sulfuric and phosphoric acids. The alloy’s ability to withstand corrosive chemicals ensures the longevity of reactors, heat exchangers, and pipes in environments where acid exposure is frequent.

   
   

2. Oil and Gas Industry
   The alloy’s resistance to stress-corrosion cracking and corrosion in high-temperature environments makes it ideal for oil and gas pipeline systems. INCOLOY 825 is used in wells, risers, and pipelines exposed to harsh drilling conditions, ensuring safe and reliable performance even in corrosive subsurface environments.

   
   

3. Pollution Control Systems
   INCOLOY 825 is employed in pollution-control equipment like scrubbers and stacks, where it is subjected to corrosive exhaust gases. The alloy’s resistance to pitting and crevice corrosion ensures that pollution control equipment remains operational for extended periods without the need for frequent replacements or repairs.

   
   

4. Nuclear Fuel Reprocessing
   This material is extensively used in nuclear fuel reprocessing plants, where its corrosion resistance is critical to ensuring safety and efficiency. INCOLOY 825 helps prevent contamination and failure in systems handling radioactive materials, contributing to the smooth operation of nuclear facilities.

   
   

5. Acid Production and Pickling Equipment
   INCOLOY 825's ability to resist corrosive acids and its strength at elevated temperatures make it the ideal material for acid production units and pickling baths, where steel is exposed to aggressive acid solutions. The material’s durability ensures minimal downtime and maintenance costs in these demanding environments.

   
   

FAQ

Q1: What makes INCOLOY 825 different from other alloys like INCOLOY 800?
INCOLOY 825 is similar to INCOLOY 800 but offers superior resistance to aqueous corrosion. The additional molybdenum and copper in INCOLOY 825 enhance its resistance to sulfuric and phosphoric acids, making it more suitable for aggressive industrial environments.

Q2: How does INCOLOY 825 perform in high-temperature environments?
INCOLOY 825 performs exceptionally well in high-temperature conditions, maintaining its mechanical properties even at temperatures up to 1000°F (537°C). This makes it perfect for applications where other materials may degrade under heat stress.

Q3: Is INCOLOY 825 suitable for use in the food industry?
Due to its excellent resistance to corrosion, particularly in acidic environments, INCOLOY 825 can be used in food processing equipment where exposure to acids is common. However, it is crucial to verify regulatory compliance for each specific application.

Q4: Can INCOLOY 825 be welded?
Yes, INCOLOY 825 is weldable, and it is often used in welded applications in industrial settings. Its welding characteristics allow for easy fabrication into complex shapes and structures while maintaining its corrosion-resistant properties.

Q5: How do INCOLOY 825 foil products compare to stainless steel coil pipe and stainless steel tube in terms of performance?
While stainless steel coil pipe and stainless steel tube offer good corrosion resistance, INCOLOY 825 outperforms them in terms of resistance to sulfuric and phosphoric acids and its ability to withstand stress-corrosion cracking, particularly in challenging industrial applications.