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In this work, we want to propose the method to increase the abrasion of the High Manganese Steel (HMS) 15Mn2Cr1V, which is heat treated by the different processes, i.e. the HMS is intermediate heated and without intermediate heating treated before austenizing. The obtained experimental result reveals that with intermediate heating, the austenite is uniform, small size grain (level 6 according to ASTM) and no carbides at the grain boundary. The obtained hardness value is equal to 98 HRB and much larger than one for the process without intermediate at 6500C. The obtained average impact toughness is equal to 115 J.cm-2. This value is also larger than one for the process without intermediate (17 J.cm-2).
