NOVELTY - Producing a component (made of an iron-chromium alloy that precipitates Laves phase, iron-containing particles, chromium-containing particles, silicon-containing particles and/or carbides) comprises subjecting a semi-finished product, made of the alloy, to a thermomechanical treatment, where: in a first step, the alloy is subjected to solution-annealing at a temperature that is greater than or equal to the solution-annealing temperature and subsequently quenching in resting inert gas or air; and in a second step, the semi-finished product is subjected to a mechanical deformation.    USE - The formed component is useful: as an interconnector in a fuel cell; as a material in a component such as reformer or heat exchanger or in an auxiliary unit of a fuel cell; in an exhaust gas system of an internal combustion engine; and for boiler, superheater, turbine and other parts of a power plant or in the chemical processing industries (all claimed).    ADVANTAGE - The method maintains ductility at room temperature, high temperature strength and/or creep strength of the precipitation-hardened ferritic alloy.    DETAILED DESCRIPTION - Producing a component (made of an iron-chromium alloy that precipitates Laves phase, iron (Fe)-containing particles, chromium (Cr)-containing particles, silicon (Si)-containing particles and/or carbides) comprises subjecting a semi-finished product, made of the alloy, to a thermomechanical treatment, where: in a first step, the alloy is subjected to solution-annealing at a temperature that is greater than or equal to the solution-annealing temperature and subsequently quenching in resting or moving (blowing) inert gas or air, or in water; and in a second step, the semi-finished product (0.05-99%) is subjected to a mechanical deformation and subsequently the Laves phases (Fe2(M, Si) or Fe7(M, Si)6) and/or Fe-containing particles, Cr-containing particles, Si-containing particles and/or carbides are precipitated in a specific and finely distributed manner so that the component produced from the formed semi-finished product is brought to an application temperature of 550-1000 degrees C by heating at 0.1-1000 degrees C/minute.    M = Mo, W or Ta (disclosed).    An INDEPENDENT CLAIM is included for a metallic component or semi-finished product (comprising a chemical composition of 12-30 wt.% of chromium, 0.001-2.5 wt.% of manganese, 0.1-2 wt.% of niobium, 0.1-5 wt.% of tungsten, 0.05-1 wt.% of silicon, 0.002-0.1 wt.% of carbon and nitrogen, maximum 0.01 wt.% of sulfur, iron (balance amount) and conventional smelting impurities), which forms a deformed microstructure after the thermomechanical treatment, in which the Laves phase(s) is/are stored in finely distributed form in the microstructure dislocation of the microstructures, where in a creep test with 35 MPa at 750 degrees C and an elongation of at least 18%, a breakthrough time in the microstructure is adjusted, and the breaking time of coarse grained, completely recrystallized microstructure exceeds a factor of at least 1.5.