The invention relates to composition comprising (a) from 40 to 70% by volume of a metal powder, based on the total volume of the composition, in which the metal powder is an alloy comprising: (a1) from 4.0 to 13.0% by weight of chromium, (a2) from 6 to 15% by weight of aluminum, 0(a3) from 4 to 30% by weight of manganese, (a4) from 38.4 to 85.95% by weight of iron, (a5) from 0.05 to 0.5% by weight of titanium, (a6) from 0% to 0.2% by weight of nickel, (a7) from 0% to 1.5% by weight of silicon, 5(a8) from 0% to 1.5% by weight carbon, all based on the total weight of the metal powder; and (b) from 30 to 60% by volume, based on the total volume of the composition, of a polymeric binder. Furthermore, the invention relates to the use of such composition in metal injection molding or additive manufacturing as well as the use of the metal powder in a binder-into-bed jetting process.