INCOLOY® alloy 825 (UNS N08825 / W.Nr. 2.4858) is a nickel-iron-chromium alloy enriched with molybdenum, copper, and titanium.
The alloy’s chemical composition is meticulously formulated to impart exceptional resistance to a wide range of corrosive environments.
Adequate nickel content ensures resilience against chloride-ion stress-corrosion cracking. The synergy of nickel, molybdenum, and copper imparts remarkable resistance to reducing environments, including those containing sulfuric and phosphoric acids.
Molybdenum plays a crucial role in enhancing resistance to pitting and crevice corrosion. Chromium content in the alloy contributes resistance to oxidizing substances like nitric acid, nitrates, and oxidizing salts.
The addition of titanium, coupled with proper heat treatment, effectively stabilizes the alloy, guarding against sensitization to intergranular corrosion.
The broad utility of INCOLOY alloy 825 stems from its resistance to both general and localized corrosion across diverse conditions.
Applications span a spectrum, encompassing chemical processing, pollution control, oil and gas recovery, acid production, pickling operations, nuclear fuel reprocessing, and the management of radioactive wastes.
Incoloy 825 Alloy Chemical Composition
| Nickel 825 Alloy Chemical Composition(%) | ||||||||||
| Ni | Fe | Cr | Mo | Cu | Ti | C | Mn | S | Si | Al |
| 38.0-46.0 | 22.0 min | 19.5-23.5 | 2.5-3.5 | 1.5-3.0 | 0.6-1.2 | 0.05 max | 1.0 max | 0.03 max | 0.5 max | 0.2 max |
Incoloy 825 Alloy Mechanical Properties
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.14 g/cm3 | 1400 °C (2550 °F) | 690-1000Mpa | 330-880Mpa | 45% – 15% |
Uses And Applications of Incoloy 825 Alloy
Applications include chemical processing, pollution control, oil and gas recovery, acid production, pickling operations, nuclear fuel reprocessing, and handling of radioactive wastes.
How to Choose the right Incoloy 825 Alloy
Choosing the right Incoloy 825 alloy involves considering several key factors to ensure it meets the specific requirements of your intended application.
Here are some guidelines to help you make an informed decision:
- Corrosion Resistance Requirements
- Temperature and Pressure Conditions
- Mechanical Properties
- Fabrication and Weldability
- Standards and Specifications
- Supplier Reputation
- Application Specifics
Conclusion
Incoloy 825 alloy provides exceptional resistance to many corrosive environments.
Considering these aspects, Incoloy 825 alloy becomes a viable choice for your project. More alloy 825 strip resources, you can contact our expert team.
