Rather, a phase transformation is taking place as a result of applied stress. The mechanical properties of ADI are extremely dependent on processing. Wide ranges in strength and ductility are possible. High temperature heat treatment (>400C) results in high ductility, good impact toughness, with a yield strength around 500 MPa. Lower temperatures (~260C) results in a higher yield strength of 1400 MPa and high hardness but much lower ductility.