Abstract: A process for the powder metallurgical production of structural parts of high strength and hardness from silicon-manganese or silicon-manganese-carbon alloyed steels. The alloying elements Si and Mn or Si, Mn and C are mixed, in powder form, by way of the alloy carriers ferrosilicon, ferromanganese or a silicon-manganese-iron master alloy containing silicon and manganese in the ranges from 10 to 30 weight percent Si, 20 to 70 weight percent Mn, remainder Fe, with an iron powder and when carbon is present with graphite, to form a powder mixture. The powder mixture is compressed and sintered at a temperature in a range from 1150.degree. C. to 1250.degree. C. and then cooled.