What is the primary raw material used in rebar production?

The primary raw material used in rebar production is steel. Steel rebar is widely used in construction due to its excellent tensile strength and ability to bond well with concrete, enhancing the structural integrity of buildings and other structures. The production of rebar involves the use of various steel grades, which can be derived from scrap steel or produced from iron ore through processes like electric arc furnace (EAF) or basic oxygen furnace (BOF) methods.

In contrast, materials like aluminum and copper are not utilized for rebar because they do not provide the necessary properties required for reinforcing concrete. While aluminum has some applications in the construction industry, it lacks the tensile strength and durability of steel for use as rebar. Plastic is also not suitable for rebar reinforcement because it does not have the structural properties needed to withstand the stresses that concrete structures face. Thus, steel remains the predominant and most suitable raw material for producing rebar, making it the correct choice.