What is the difference between FeCrAl and kanthal?

### FeCrAl vs Kanthal: What is the Difference?

FeCrAl and Kanthal are two common types of resistance heating alloys used in the manufacture of heating elements for various applications. While both are made of iron, chromium, and aluminum, there are some key differences between the two.

#### Composition.

FeCrAl, short for iron-chromium-aluminum, usually contains higher percentages of iron and chromium compared to Kanthal. This results in FeCrAl alloys being more stable at high temperatures and less prone to oxidation. On the other hand, Kanthal contains lower levels of iron and chromium, making it suitable for lower temperature applications.

#### Temperature Range.

One of the main differences between FeCrAl and Kanthal is the temperature range at which they can operate effectively. FeCrAl alloys are known for their high-temperature capabilities, with some grades being able to withstand temperatures up to 1400°C. Kanthal, on the other hand, has a lower maximum operating temperature of around 1300°C.

#### Resistance to Oxidation.

Due to its higher chromium content, FeCrAl alloys have better resistance to oxidation compared to Kanthal. This makes FeCrAl more suitable for applications where the heating element is exposed to air or other oxidizing environments. Kanthal, while still resistant to oxidation, may not be as durable in high-temperature, oxidizing conditions.

#### Cost.

In general, FeCrAl alloys tend to be more expensive than Kanthal due to their higher iron and chromium content. This cost difference may be a factor to consider when selecting the appropriate heating element material for a specific application.

#### Conclusion.

In summary, the main differences between FeCrAl and Kanthal lie in their composition, temperature range, resistance to oxidation, and cost. FeCrAl alloys are known for their high-temperature capabilities and better oxidation resistance, while Kanthal is more suited for lower temperature applications where cost may be a factor. Both materials have their own set of advantages and disadvantages, so it is important to consider the specific requirements of the application before selecting the appropriate heating element material.

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