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The objective of the research work is to optimize the wear resistance of theaustenitic manganese steel from Nigerian Foundries used for rock drilling.Emphasis is given to the control of grain size and phases, particularly secondarycarbides. To achieve the overall goal, relationships are established betweenprocess parameters, mechanical properties, microstructure and alloying elements.Different heat treatments followed by water quenching are studied. Mechanicaltesting includes tensile, hardness and impact tests. Microscopy investigationsinclude optical and Scanning Electron Microscopy (SEM). The results to date area substantial grain refinement, dissolution of secondary carbides and overallmaterial homogenization that are expected to improve wear resistance and servicelife. This can lead to a substantial reduction in costs associated with wear partsmaintenance and replacement. Furthermore, this can strengthen Hadfieldaustenitic manganese steel as a highly cost efficient and preferment material forthe mining industry.