The simplest way to produce electrical steel is the production of non-grain-oriented motor laminations material. It’s possible via a pickling line/tandem cold mill, a batch annealing furnace and a temper mill. This is more or less standard equipment in a steelmaking plant. Since the high silicon content leads to silicon sludge occurrence during the pickling process a proper desludge system should be available in the pickling line. This can normally integrated into an existing line within a small revamp.

Starting from this equipment it’s also relatively easy to process fully-finished non-oriented material with low silicon content. It just needs one new line; an annealing and coating line. In the annealing and coating line, the internal microstructure is adjusted during the annealing process and the strip surface is then provided with an insulating layer depending on requirements. The next extension step is the integration of an annealing and pickling line as well as a reversing cold mill. Due to the high silicon content the hot strip material has to be annealed before it gets pickled and cold rolled.