[en] Full text: Industrial wastes are part of the metallurgical processes where these inappropriate wastes configure an enormous environmental and economic issue. These metallurgical wastes have significant levels of heavy metals, many of them with high technological and economical importance. For example, the production of Fe-Cr alloys results in a significant production of fine size particles which it contains significant amounts of Cr and C. Those fine size particles, by the presence of Cr, have great importance and it can be used as alloy source for stainless steel production. A possible route for the recycling of fine size particles is the use of combined pyro and hydrometallurgical processes for Cr as Cr2O3 extraction. However, the development of those routes requires a deep understanding of the nature of the original powder material sources. In this context, this present work is focused on the characterization of thin metallic powder residue with a significant concentration of Cr and C elements generated by Fe-Cr alloy production at FERBRASA plant (Bahia Ferro Alloys Company S / A) by X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). XRD results have determined the phase identification and quantification with the use of the Rietveld method. SEM images have revealed both the particle morphology as well the major elements content present using Energy Dispersive Spectroscopy (EDS). The results obtained by SEM have suggested the possible presence of particles with sizes of close to 200 mm and very homogeneous particle morphology, with the EDS identification of Cr and C as majority elements. Also the XRD quantitative analysis of the samples has suggested the presence of chromium carbides (50% of the total phase amount), mainly Cr7C3 and Cr23C₆. Besides these carbides, the residue particles have present significant amount of graphite (28%). The EDS analyses have revealed the presence of Fe-Cr (6%) in agreement with the original material content and iron. (author)