B50AH800 is a soft magnetic alloy ferrosilicon very low carbon content, usually silicon content of 0.5 to 4.5%. Added silicon can improve iron resistivity and maximum permeability and lower coercive force, core loss (iron loss) and magnetic aging.

B50AH300 is a soft magnetic alloy ferrosilicon very low carbon content, usually silicon content of 0.5 to 4.5%.

B50AH350 is a soft magnetic alloy ferrosilicon very low carbon content, usually silicon content of 0.5 to 4.5%.