The powder space holder (PSH) and powder injection molding (PIM) methods have an industrial competitive advantage that is capable of net-shape production of the micro-sized porous parts. In this study, micro-porous austenitic stainless parts were produced by PSH-PIM process. 316L stainless steel powder and spherical polymethylmethacrylate (PMMA) particles were used as a space holder material. The effects of fraction and average size of PMMA on properties of sintered micro-porous 316L stainless samples were investigated. It was shown that the fraction and average size of PMMA could be controlled properties.
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