Abstract: The lubricant for metal powder metallurgy of the present invention consists of particulates that contain at least one amide compound selected from the group consisting of amide compounds represented by general formula (1) below and amide compounds represented by general formula (2) below, wherein particulates with a particle diameter larger than 198 ?m are less than 1 mass % and particulates with a diameter of 10 ?m or less are not more than 10 mass %, R1—CONHCH2mNHCO—R2??(1) wherein, R1 and R2 each independently represent a C13-27 aliphatic hydrocarbon group and m represents a number from 1 to 6, R3—CONH2??(2) wherein, R3 represents a C13-27 aliphatic hydrocarbon group. The lubricant for metal powder metallurgy of the present invention realizes low rattler values and low densities without inhibition of the lubricity, and can provide green bodies and sintered bodies free of cracking, chipping, and density imbalances.

Abstract: The lubricant for metal powder metallurgy of the present invention consists of particulates that contain at least one amide compound selected from the group consisting of amide compounds represented by general formula (1) below and amide compounds represented by general formula (2) below, wherein particulates with a particle diameter larger than 198 ?m are less than 1 mass % and particulates with a diameter of 10 ?m or less are not more than 10 mass %, R1—CONH?CH2?mNHCO—R2??(1) wherein, R1 and R2 each independently represent a C13-27 aliphatic hydrocarbon group and m represents a number from 1 to 6, R3—CONH2??(2) wherein, R3 represents a C13-27 aliphatic hydrocarbon group. The lubricant for metal powder metallurgy of the present invention realizes low rattler values and low densities without inhibition of the lubricity, and can provide green bodies and sintered bodies free of cracking, chipping, and density imbalances.