Ever since the first electric motor was patented in 1837, engineers have continuously improved their design and efficiency. Today, these machines form the backbone for every industry and are indispensable in our daily lives. The ferromagnetic core that sits at the center of each of these machines is typically constructed from thin sheets of electrical steel. During the construction of the core, the magnetic properties of these sheets are negatively impacted in several ways – one of which being the increase in ferromagnetic core energy loss. Consequently, an electric machine can perform significantly worse than predicted in the simulations due to the parasitic electromagnetic effects incurred during production. The goal of this thesis is to investigate and analyze the impact of several production techniques on the ferromagnetic material properties using standardized and experimental measurement techniques. Based on these measurements, it is shown how material models can be parametrized that succeed accurately in simulating the impact of specific production techniques. Such models enable machine designers to predict machine performance with the effects of core manufacturing taken into consideration.