ThePipingMart Blog Metals Hastelloy B3 vs C276 – What’s the Difference

Hastelloy B3 vs C276 – What’s the Difference

Hastelloy B3 vs C276

Hastelloy B3 and C276 are two of the most commonly used alloy materials. They share many similarities but have key differences worth understanding before choosing the right one for your project. In this blog post, we’ll look closer at Hastelloy B3 vs C276, including their properties, applications, and other important factors to consider.

Difference Between Hastelloy B3 and C276


Hastelloy B3 and C276 are high-performance alloys resistant to corrosion and have excellent heat resistance. However, some differences in their specific properties may make one more suitable for certain applications.

Hastelloy B3, for example, has a higher molybdenum content than C276, which makes it particularly resistant to hydrochloric and sulfuric acids. Its higher nickel content also gives it better thermal stability and corrosion resistance. On the other hand, C276 has a higher chromium content, which makes it better suited for oxidizing environments.


Because of their excellent corrosion resistance and high-temperature capabilities, both Hastelloy B3 and C276 are used in a wide range of applications in various industries. For example, they are often used in chemical processing, where they can handle highly corrosive chemicals and high temperatures.

Hastelloy B3 is well-suited for chemical and pharmaceutical applications and flue gas desulfurization (FGD) systems. C276, on the other hand, is often used in the oil and gas industry, as well as in pulp and paper processing.


The cost is another factor to consider when choosing between Hastelloy B3 and C276. Both materials are relatively expensive compared to other alloys, but some price differences exist.

Hastelloy B3 is typically more expensive than C276 due to its higher nickel content. However, more than the price difference may be needed to outweigh the advantages of using B3 in certain applications, particularly those with superior corrosion resistance.


Finally, when choosing between Hastelloy B3 and C276, it’s important to consider their availability. Both are widely used but could be in short supply, depending on the specific market and demand.

Additionally, some fabricators may have more experience working with one material than the other, and having a familiar fabricator can be crucial in ensuring a successful project.


Choosing between Hastelloy B3 and C276 can be difficult, but understanding the differences in their properties, applications, cost, and availability can help you make an informed choice. Ultimately, both alloys offer excellent corrosion resistance and high-temperature capabilities so the best choice may come down to the specific requirements of your project. By working with a knowledgeable supplier and fabricator, you can ensure that you choose the right material for your needs and that your project succeeds.

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