F-Steels: a Basic Overview

In the world of metals and heat treatments in Gastonia, NC, there are numerous classifications and grades that need to be taken into account. One such grade is that of F-steels. Take a look at what makes these steels unique and what applications they’re best used for.

The basics

F-Steels are usually classified as tool steels and sometimes structural steels. Thanks to their extremely high resilience and their ability to stand up to heavy abuse, they’re candidates for cold-work tools especially. And, because of their general high tungsten content, they usually develop hard tungsten carbides when hardened—in both as-quenched and low temperature tempering capacities.


As mentioned, the appeal of F-steels is in the tungsten carbides that form during the hardening process. In order to achieve optimal hardness, however, tempering temperatures must stay below 400-degrees. As carbides begin to develop, F-steels can be brine-quenched to solidify the heat treatment in Gastonia, NC.

Generally, hardened F-steels are quick into action and can be ready for application in as little as two hours after being quenched!

Strength and reliability

If you’re working in a cold environment, require implements with maximum wear resistance or are looking for durability that is unsurpassed by other steel components, F-steels are a supreme choice.

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