A method of forming a metal part comprising the steps of: (i) providing a metal powder composition comprising a blend of primary metal particles having an outer surface comprising a metal oxide, and an organics package that is capable of being spread onto the outer surface of the primary metal particles, the organics package comprising an organic lubricant, an organic acid and an organic compound other than the lubricant or organic acid that leaves a carbon residue on the outer surface of the primary metal particles subsequent to a delubing step; (ii) compacting the metal powder composition within a die cavity to form a green compact, wherein the organics package is spread onto the outer surface of the primary metal particles in the green compact; (iii) delubing the green compact; and (iv) sintering the delubed green compact to form the metal part, wherein the metal oxides on the surface of the primary metal particles in the green compact are removed in situ in a reaction with the organic acid, lubricant and/or the carbon residue from the organic compound other than the lubricant or organic acid at a temperature below which liquid phase bonding and/or solid state diffusion occurs in the sintering step, and wherein the metal part has a sintered density that is ≥ 96 % of a theoretical density for all metallic constituents of the metal powder composition immediately after the sintering step and prior to any further post-sintering densification steps, wherein the primary metal particles contain iron and optionally ≤ 8 % by weight of one or more alloying elements, wherein the metal powder composition further comprises a moderate amount of one or more liquid phase forming materials or precursors thereof, wherein the delubing step (iii) is conducted in an inert atmosphere, wherein the delubed green compact is heated in the sintering step (iv) to a peak sintering temperature at a heat up rate of 15.6 °C/min or higher, wherein the metal part contains iron and ≤ 8 % by weight of alloying elements. (i) providing a metal powder composition comprising a blend of primary metal particles having an outer surface comprising a metal oxide, and an organics package that is capable of being spread onto the outer surface of the primary metal particles, the organics package comprising an organic lubricant, an organic acid and an organic compound other than the lubricant or organic acid that leaves a carbon residue on the outer surface of the primary metal particles subsequent to a delubing step; (ii) compacting the metal powder composition within a die cavity to form a green compact, wherein the organics package is spread onto the outer surface of the primary metal particles in the green compact; (iii) delubing the green compact; and (iv) sintering the delubed green compact to form the metal part, wherein the metal oxides on the surface of the primary metal particles in the green compact are removed in situ in a reaction with the organic acid, lubricant and/or the carbon residue from the organic compound other than the lubricant or organic acid at a temperature below which liquid phase bonding and/or solid state diffusion occurs in the sintering step, and wherein the metal part has a sintered density that is ≥ 96 % of a theoretical density for all metallic constituents of the metal powder composition immediately after the sintering step and prior to any further post-sintering densification steps, wherein the primary metal particles contain iron and optionally ≤ 8 % by weight of one or more alloying elements, wherein the metal powder composition further comprises a moderate amount of one or more liquid phase forming materials or precursors thereof, wherein the delubing step (iii) is conducted in an inert atmosphere, wherein the delubed green compact is heated in the sintering step (iv) to a peak sintering temperature at a heat up rate of 15.6 °C/min or higher, wherein the metal part contains iron and ≤ 8 % by weight of alloying elements.