A matrix of twelve laboratory heat treated iron-silicon specimens were investigated to identify the microtextures, grain misorientations and grain size distributions present and to relate them to the various silicon contents and annealing cycles. The steel grades examined contained either 1.0%, 2.4% or 3.0% silicon. The results showed that the higher strain levels present in the hot rolled microstructures as silicon content increased created a greater driving, force for recovery, recrystallisation and grain growth processes.