Steel fire design to Eurocode 3.

Enter the section, exposure and load level, and Volex Anvil computes the section factor Am/V, the steel temperature rise for the required fire period, and the reduced yield strength at that temperature — then checks the member against the fire-limit-state load, per EC3-1-2 §4.2.

For protected members the required protection thickness is derived from the target limiting temperature and the degree of utilisation μ0, so the design gives a specifiable protection, not just a pass/fail.