Steel in a quenched condition (State A) has the
lowest yield stress and highest tensile strength, so
Rp0.2/Rm ratio is the lowest compared to steels which
were quenched and low temperature tempered at
200 °C (State B) and 280 °C (State C). Lower values
of the Rp0.2/Rm ratio indicate enhanced resistance to
localised yielding which provides higher ballistic
performance.