Fused tungstencarbide severly reacts with iron and nickel matrices respectively during consolidation by sintering, as WC/W2C hard phases are not stable. Consequently the material lacks of a hardness loss and/or decrease in wear resistance. Distinct reactions between the constituents can be effectively supressed by hot extrusion, as heating and consolidation periods are small compared to sintering cycles. Iron and nickel based samples with different thicknesses of the reaction zone were produced by varying the sintering temperature and compared to hot extruded specimen with post thermal treatments. Microscopic characterization was accomplished by XRD and pinon-disc wear tests.