The mining industry faces growing challenges from declining ore grades and increasing ore hardness, driving up energy consumption and operational costs. This research explores alternatives to ASTM A128 HM A128 Hadfield steel for components subjected to high-stress wear, such as those found in mineral excavation, transport and comminution operations. Chromium strongly affects the stacking fault energy (SFE) in high-manganese steels and, consequently, their hardening mechanisms. In TWIP (Twinning Induced Plasticity) steels, Fe-22Mn-0.6C-xCr alloys with 0 %, 5 %, and 10 %Cr, strain hardening mechanisms evolve as plastic deformation increases. Mechanical twinning (MT) and Dynamic Strain Ageing (DSA), along with dislocation glide, significantly influence wear performance, while carbide precipitation associated with SFE further impacts behavior. Wear tests were conducted using a pin-ondisk tribometer at loads of 90 N and 180 N under constant sliding speed, assessing wear coefficient and the coefficient of friction (COF). Wear tracks were analyzed using light microscopy, X-ray diffraction (XRD), and FEG-SEM-EBSD. At lower loads, limited mechanical twinning resulted in lower strain hardening and higher wear rate. Strain hardening observed in the wear tracks correlated with enhanced wear resistance, and the twinning density for each composition was quantified to assess its role and significance in the wear process. Finally, the wear coefficients obtained in this work range from 1.0 x 10- 5 [mm3/Nm] for the 0 %Cr steel at 90 N to 4.5 x 10-6 [mm3/Nm] for the 10 %Cr steel at 180 N, highlighting the impact of the degree of activation of the hardening mechanism in the wear resistance of this family of materials.