Magnetic, magnetocaloric and transport properties of CrAs0.3Sb0.7

► The c axis of CrAs0.3Sb0.7 shows an irreversible expansion of 0.44% after several thermo-cycles. ► Expansion causes a sharp increase of the resistivity close to Tt in the cooling process. ► The ρ(T) curve shifts to higher values with increasing number of warming and cooling cycles. ► Around Tt, an inverse MCE with a maximum value of 0.2 J/kg K for a field change of 0-7 T is observed.