The difference between oriented silicon steel and non-oriented silicon steel:
1, the nature of different

Non-oriented silicon steel: non-oriented silicon steel is a very low carbon ferrosilicon alloy, in the deformation and annealing of the steel plate after the grain was irregularly oriented distribution.

2, different characteristics
Oriented silicon steel: oriented silicon steel magnetism has a strong directionality, in the rolling direction of the lowest iron loss value, the highest permeability and in a certain magnetization field has a high magnetic susceptibility value. The silicon content of oriented silicon steel is about 3%, and the steel is required to have a low content of oxide inclusions, and must contain some kind of inhibitor (MnS, A1N).
Non-oriented silicon steel: non-oriented silicon steel containing silicon 0.8% -4.8% of ferrosilicon alloy, hot and cold rolled into a thickness of 1mm below the silicon steel sheet. The addition of silicon can improve the iron resistivity and maximum permeability, reduce coercivity, core loss (iron loss) and magnetic aging.

3, different production processes
Orientation silicon steel: orientation silicon steel using oxygen converter melting, billet after hot rolling, normalization, cold rolling, intermediate annealing and secondary cold rolling rolled into finished thickness, and then after decarburization annealing and high-temperature annealing, and finally coated with an insulating layer.
Non-oriented silicon steel: iron pre-desulfurization, secondary desulfurization by adding Ca0+CaF: flux or rare earth elements and calcium during converter blowing. Boiling steel is further desulfurized after decarburization by vacuum treatment. Ferrosilicon with low titanium and zirconium content is selected for alloying.