When it comes to corrosion-resistant alloys, Hastelloy B3 and Hastelloy C22 are two of the most popular options on the market. Both are designed to withstand corrosive chemical environments and high temperatures, making them ideal for a variety of applications including chemical processing, oil and gas, and pharmaceuticals.
Despite their similarities, there are some key differences between the two alloys that may affect their performance and suitability for certain applications. In this blog post, we’ll look at the differences between Hastelloy B3 and Hastelloy C22 and help you decide which alloy is best for your needs.
Differences between Hastelloy B3 and Hastelloy C22:
Ingredients and properties:
One of the most significant differences between Hastelloy B3 and Hastelloy C22 is their composition. Hastelloy B3 is a nickel-molybdenum alloy with added chromium. It resists stress corrosion cracking and pitting in sulfuric acid environments. Hastelloy C22, on the other hand, is a nickel-chromium-molybdenum alloy with added tungsten. It has excellent resistance to oxidizing and reducing acids, including sulfuric acid, hydrofluoric acid, phosphoric acid, chlorides and other halides.
Mechanical properties:
In terms of mechanical properties, there are slight differences between Hastelloy B3 and Hastelloy C22. Hastelloy B3 has slightly better tensile strength and elongation at break than Hastelloy C22. However, Hastelloy C22 has higher hardness and yield strength compared to Hastelloy B3. Differences in mechanical properties should be considered when selecting the appropriate alloy for a specific application.
Weldability:
Another significant difference between Hastelloy B3 and Hastelloy C22 is their weldability. Hastelloy C22 has better welding properties than Hastelloy B3 due to its low carbon content. Additionally, Hastelloy C22 is less susceptible to sensitization that can occur during welding, making it ideal for welded structures. However, Hastelloy B3 can be challenging to weld due to its high nickel content and susceptibility to hot cracking.
Corrosion resistance:
Both alloys are highly resistant to corrosion, but have different levels of resistance to specific chemicals. Hastelloy B3 is well suited for hydrochloric, sulfuric and phosphoric acid environments. In contrast, Hastelloy C22 is best suited to environments containing oxidizing acids such as nitric and acetic acids. If you work in an environment with oxidizing and reducing acids, Hastelloy C22 is the best choice because of its superior corrosion resistance.
in conclusion:
Determining which alloy to use will depend on your specific application needs and requirements. Hastelloy B3 and C22 are excellent choices for resisting corrosion and harsh chemical environments. However, differences in their composition, mechanical properties, weldability and corrosion resistance may affect their performance in certain situations. Understanding these differences allows you to choose the right alloy to keep your equipment running efficiently. Consult industry professionals to help you make the right choice.
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-25-2023
