Graphit/Aluminum composites have been produced by means of Squeeze Casting Infiltration (SQCI) and Gas Pressure Infiltration (GPI) methods. A porous graphite with a porosity of 10 % served as preform and has been infiltrated with AlSi7Mg. Material characterization has been performed based on micrographs and elemental distribution maps of graphites/AlSi7Mg composites, and on scanning electron and transmission electron microscopy of the metal/graphite interface. Flexural strength was determined as a function of process parameters. Low metal solidification rates during production of the composites suppressed the formation of fine eutectic structure in the metal phase of the composite for the benefit of coarse silicon phase. Size and distribution of the silicon phase seems to depend on the cooling rates. The lower cooling rates during Gas Pressure Infiltration compared to the Squeeze Casting Infiltration result in coarser silicon phases. Aluminum carbide needles at the metal/graphite interface were not detectable for both GPI- and SQCI-composites, neither by light microscopy nor by scanning electron microscopy. GPI-composites exhibited a flexural strength of 105 MPa which is 100 % higher than the flexural strength of the graphite preform. Infiltration using Squeeze Casting Process resulted in 50 % higher flexural strength value of 75 MPa in comparison to that of the porous graphite. The lower flexural strength of the SQCI-composites may be caused by the high content of brittle silicon phases along the metal/graphite interface of the SCQI specimens. Further optimization of the infiltration parameters during Squeeze Casting Processing shall improve the infiltration homogeneity and consequently increase the strength of the SCQI-composites.