Method for producing tough iron-chromium-aluminium ferritic electrothermal alloy

The invention discloses a method for producing tough iron-chromium-aluminium ferritic electrothermal alloy, which comprises the following steps: 1) raw material selection; 2) technological processes: a, vacuum melting; b, high-temperature vacuum refining; c, reductive slagging; d, temperature reduction and solidification; e, temperature rise and deoxidation; f, quenching and tempering and homogenization; and g, casting ingots. The product produced by the method has excellent corrosion resistance as well as good toughness, and is as applied to the material of a heating wire; and the heating wire has lower cost, the used temperature 300 DEG C higher, and longer service life than a nickel-chromium heating wire.