The steel-TiB2 composites were fabricated by Spark Plasma Sintering (SPS) process. The effect of the sintering temperature (1000 degrees C and 1100 degrees C) and time (5 and 30 min) on the microstructure, densification, and physical as well as mechanical properties of the composites was investigated. The experimental data showed that maximum relative density of 97-99% was achieved for composites sintered at 1100 degrees C. The characterization of the composites was performed by X-ray Diffraction and Scanning Electron Microscopy. The mechanical properties such as microhardness and compression strength were investigated. The microstructural study revealed that the TiB2 particles were distributed uniformly in the steel matrix. The results show that Young's modulus, microhardness and compression strength of composites increased with the increase of sintering temperature. The highest physical and mechanical properties were obtained for the composites sintered at 1100 degrees C for 30 min. (C) 2015 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.