The deoxidized aluminum blocks and aluminum cakes produced by our company have a smooth surface without flashes, slag inclusions and serious pores; aluminum blocks are used for deoxidation in the steelmaking production process, and are the updated products of pure aluminum and aluminum-iron alloy two deoxidizers. This product not only overcomes the fierce reaction of pure aluminum in molten steel deoxidation, but also overcomes the defect that aluminum is limited to react on the upper part of molten steel due to its light specific gravity. Steel core aluminum is mixed with pure aluminum and low carbon steel in a certain proportion, which not only increases the specific gravity but also maintains the properties of aluminum. It can be added to the molten steel to quickly sink into the depths, increase the reaction interface, and accelerate the reaction speed. At the same time, the aluminum maintains the original strong reducibility, has good deoxidation properties, and shows its own good performance, and it is used in the field. The operation is convenient, the effect is stable, and it is well received by users after being put into the market.