What Does FN Stand For?

FN stands for Ferrite Number

Ferrite Number (FN) is a quantitative measure used to assess the ferrite phase in steel and iron alloys. It is calculated based on the proportions of austenite and ferrite present in the microstructure, providing insight into the material's properties, performance, and weldability. The FN value helps metallurgists and engineers optimize their alloy compositions and processing techniques to achieve desired mechanical characteristics.

Other Meanings for FN