Stellite 6 vs Stellite 12 – What’s the Difference?

When it comes to high-performance alloys, few materials can compete with the strength, durability, and heat resistance of Stellite. But with different variations of this alloy available on the market, how do you know which is right for your needs? In this blog post, we’ll explore the key differences between Stellite 6 and Stellite 12, helping you make an informed decision when selecting the right material for your application.

Difference between Stellite 6 and Stellite 12


One of the most significant differences between Stellite 6 and Stellite 12 lies in their composition. While Stellite 6 is a cobalt-based alloy with tungsten, chromium, and carbide additives, Stellite 12 comprises cobalt, molybdenum, and tungsten. This difference in composition means that Stellite 6 is generally more resistant to corrosion and wear than Stellite 12, although the latter is slightly more resistant to heat.


The choice between Stellite 6 and Stellite 12 often comes down to the specific application. Stellite 6 is favoured for high-temperature environments, such as in gas turbines, exhaust valves, and pumps. On the other hand, Stellite 12 is commonly used for cutting tools, especially in woodworking applications, with superior wear resistance and toughness.


Both Stellite 6 and Stellite 12 are notoriously difficult to machine due to their hardness and resistance to heat. However, Stellite 12 is generally considered easier to work with than Stellite 6, especially regarding drilling and tapping. It’s important to note that both materials require specialised tooling and expertise to machine effectively.


Another consideration when choosing between Stellite 6 and Stellite 12 is cost. Stellite 6 is generally less expensive than Stellite 12 because it has fewer expensive additives like molybdenum. If you are working with a tight budget and don’t need the high-temperature resistance of Stellite 12, Stellite 6 might be the better option. For More information visit marketsmartb2b


Stellite 6 and Stellite 12 have unique strengths and weaknesses, and the choice between them ultimately comes down to the specific application. Understanding each material’s composition, applications, machinability, and cost will help you make an informed decision and ensure your project’s success. Stellite alloys offer unparalleled durability and performance, making them a top choice for demanding applications across various industries.

Leave a Reply

Your email address will not be published. Required fields are marked *