Electrical steels are a type of Fe-Si steel used as transformer cores in the energy industry. Due to a welcomed drive for renewable energies, the understanding of soft magnetic materials, such as this alloy, is especially important. The use of SANS techniques to move towards a deeper understanding of how precipitation influences the underlying mechanisms of the microstructural development within this steel will perform a crucial role in understanding the macroscopic properties - in particular, magnetism. An investigation of 98 samples from experimental and industrial routes is proposed with the intention to investigate the growth and evolution of nano-scale precipitates through selected heat treatments. Analysis of SANS work will be combined with emerging techniques such as atom probe tomography to gain a valuable insight into precipitation kinetics.