Detailed attention is given here to the sinteringSintering of 17-4 PH stainless steelStainless steel. A prime focus is on its use in structural applications where high mechanical propertiesMechanical properties and corrosionCorrosion resistance are desired. Exceptional strengthStrength, in the context of a net-shaping technology, is possible because the alloy sinters to near-full densityDensity. Forming complex shapes is possible via a variety of powder metallurgyPowder metallurgy routes: injection molding, die compaction, hot isostatic pressingHot isostatic pressing, laser deposition, and additive manufacturingAdditive manufacturing. After sinteringSintering to near-full densityDensity, mechanical propertiesMechanical properties are optimized by a two-step heat treatmentHeat treatment. Final propertiesProperties depend on several processing parameters, such as particle sizeParticle size, oxygen content, debinding temperatureTemperature, and sinteringSintering conditions. In recent times, additive manufacturingAdditive manufacturing has attempted to commercialize 17-4 PH components. However, some of the additive manufacturingAdditive manufacturing approaches fail to reach the densityDensity level needed for attractive propertyProperties combinations; they disregard findings from earlier powder metallurgyPowder metallurgy studies. This article honors Eugene Olevsky’s contributions by illustrating the interactions and outlining the sinter processing steps needed to form full-densityDensity complex shapes with optimized mechanical propertiesMechanical properties.