EAF-50t Electric Arc Furnace The actual power consumption per ton of steel is 610-180-200-10=220 kWh Namely, the actual electrical energy needed for melting, phosphorus removal and heating up to the tapping temperature of 50% scrap steel and 50% molten iron in the arc furnace, (1630) is 220 kWh/t (e.g. oxygen blasting 50Nm3, metal charging 60%, electrical consumption 160kWh/t).