In laboratory experiments, large size commercial abrasive grade silicon carbide particles (100-300mm, 1.5-2.5 aspect ratio) in the as-received state and after prior oxidization were considered. They were successfully used by injection and vortex addition techniques to obtain Cast Iron Matrix Composites (CIMCs). Added SiC particles act as a graphitizing agent in low silicon (0.7-0.8%Si), near eutectic range iron (CE=3.9-4.2%), depending on the cooling rate, SiC state and addition technique. Despite the lower ledeburite and cementite presence and consequently lower hardness level, the dry wear resistance of SiC-CIMCs is 35-45% higher, relative to the base iron, for a mainly pearlitic metal matrix.