What is Incoloy used for?
When it comes to the unstable environments of chemical processing, consider INCOLOY Alloy 825 as your material of choice
INCOLOY Alloy 825 is an extremely versatile and practical material that is frequently used in the chemical industry.
There are many challenges when handling and processing chemicals. Chemicals are highly corrosive in nature, and the processes required to store and handle chemicals often generate large amounts of heat.
It is important that the materials chosen for any part of the industrial process are up to the task. Fortunately, recent developments in alloy production have created materials that are robust enough to handle even the most unstable chemical processes.
All nickel alloys share key properties that make them ideally suited for this industry. They are highly corrosion-resistant and can handle the high temperatures and pressures involved. These high-quality nickel alloys are used in the manufacture of heat exchangers, furnaces, pipes, pumps and valves.
Why choose Incoloy 825 alloy?
Of all the nickel alloys offered by GNEE, INCOLOY Alloy 825 is an alloy well suited for use in the chemical industry. This material was one of the first to add molybdenum to its nickel-chromium-iron composition, and many other nickel alloys have since been developed based on its success.
Although INCOLOY Alloy 825 was a forerunner of the more modern nickel alloys, it is still widely used in the chemical industry. In addition to molybdenum, it also includes copper and titanium. Balanced with high nickel (38-46%), iron (minimum 22%) and chromium (19.5-23.5%) content, these elements combine to form a material with excellent resistance to many corrosive environments.
This material has earned a niche in the chemical industry due to its broad corrosion resistance. It resists chloride ion stress corrosion cracking, for example, it can withstand reducing conditions in the presence of sulfuric acid and phosphoric acid. The advantage of molybdenum is that it makes the material resistant to pitting and crevice corrosion; while chromium protects against oxidizing species such as nitric acid, nitrates and oxidizing salts. With the correct heat treatment, titanium stabilizes the material and prevents intergranular corrosion sensitization.
Purpose and application
As you can see, INCOLOY 825 alloy is carefully produced to have a range of properties that make it useful in the chemical industry. It is also used in pollution control, oil and gas recovery, acid production, pickling operations, nuclear fuel reprocessing and radioactive waste disposal.
What makes this nickel alloy so useful isn't just its corrosion resistance. It also exhibits good mechanical properties from low to moderately high temperatures, although it does have its limitations - see the full datasheet for more information.
It is also an easy material to work with as it is quite malleable. It can be machined easily and in a manner similar to austenitic stainless steel. It requires careful annealing, as the temperatures and processes used are critical to the material's high corrosion resistance.
If you would like to discuss your next project with us and learn more about INCOLOY 825 alloy and its properties, please contact us.
