It is common practice for some industrial processes such as thermal spraying, metal injection molding (MIM-PIM) or laser sintering to use currently metallic or pre-alloyed powders. The main characteristics needed by different processes using metallic powders are a specific composition, limited particle size distribution or low contamination rate. In addiion a strong demanding application for metallic powders involves atomization facilities in constant evolution to improve the powder quality. The aim of this paper is to present an iron base alloy (stailess steel 316L/1.4404) powder elaborated with gas atomizing process in neutral atmosphere. This process used a particular design of nozzle to obtain high speed atomizing gas flow to control particle size distribution. some microscope observations will show that the powder particles are spherical in shape and have a full density. some powder analysis results are developed and show a narrow particle size distribution. Indeed, it can be contained generally between 1 to 100 μm or 1 to 200 μm in relation with atomizing parameters. The recent results have shown that powder batches can be elaborated and adapted to a conversion powder process like laser sintering.