Incoloy 800 and Incoloy 825 are two commonly used corrosion-resistant alloy materials. This article will provide a detailed comparison of the performance differences between these two alloys and their suitability for different applications.
introduce:
Incoloy 800 is a corrosion-resistant alloy with excellent high temperature resistance and corrosion resistance. It provides general corrosion properties to many aqueous media at temperatures up to 1500°F (816°C), and due to its nickel content, it is resistant to stress corrosion cracking. At high temperatures, it is resistant to oxidation, carbonization and vulcanization, while also possessing high fracture and creep strengths.
Incoloy 825 is a nickel-iron-chromium alloy with added molybdenum, copper and titanium. The alloy’s chemical composition is designed to provide exceptional resistance to many corrosive environments. Incoloy 825′s resistance to general and localized corrosion under a variety of conditions makes it valuable for a wide range of applications.
chemical composition:
Incoloy 825 has higher purity and tighter control of harmful elements than Incoloy 800. For example, Incoloy 800 has stricter sulfur control than Incoloy 825, so in general, the transient performance of Incoloy 800 is better than that of Incoloy 825. Incoloy 825 has better control over impurity elements such as silicon and manganese, which means it has better durability.
Corrosion resistance:
Incoloy 825 has stronger advantages in corrosion resistance than Incoloy 800. Incoloy 825 has less iron and more nickel, which means its basic corrosion resistance is better. In addition, molybdenum is added to Incoloy 825, making it more resistant to reducing environments (sulfuric acid and phosphoric acid) and also helpful against pitting and crevice corrosion. In addition, the copper element in Incoloy 825 gives it better corrosion resistance at room temperature.
Mechanical behavior:
Both Incoloy 800 and Incoloy 825 are solid solution strengthened alloys, and there is no significant difference in strength between the two. They differ mainly in corrosion resistance.
Physical properties:
There are also some differences in the physical properties of Incoloy 800 and Incoloy 825. Incoloy 825 has a slightly higher density than Incoloy 800 and a slightly higher melting point range. Additionally, Incoloy 825 has a lower Curie temperature, which means it has better magnetic properties at low temperatures.
Application areas:
Incoloy 800 is mainly used in high temperature applications such as automotive, resistors and heat treatment. Incoloy 825 is widely used in chemical industry, marine, oil and gas processing, pollution treatment, power generation and other fields due to its better corrosion resistance.
price:
Because Incoloy 825 has better corrosion resistance and a more complex composition, its price is slightly higher than Incoloy 800. In some high-temperature applications where the environmental conditions are not very harsh, Incoloy 800 can be preferred to save costs.
in conclusion:
In general, Incoloy 825 adds molybdenum and copper elements to Incoloy 800, making its overall corrosion resistance better than Alloy 800. Therefore, it is widely used in various complex environments. Both alloys are solid solution strengthened alloys with no significant difference in mechanical properties. The price of alloy 800 is lower, and it can be used first when both alloys can be used. If you have related needs, Anton Metal can provide affordable Incoloy 800 and Incoloy 825 products, please feel free to contact us.
Tianjin Anton Metal Manufacture Co., Ltd. is a company specializing in the production of various nickel-based alloys, Hastelloy alloys and high-temperature alloy materials. The company was established in 1989 with a registered capital of 10.0 million, specializing in the production and sales of alloy materials. Anton Metal’s products are widely used in aerospace, chemical industry, electric power, automobile, nuclear energy and other fields, and can also provide customized alloy material solutions according to customer needs. If you need to know the price consultation of alloy materials or provide customized alloy material solutions, please feel free to contact the sales staff.
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Post time: Dec-13-2023
