Bronze billets are smaller, semi-finished pieces of bronze, typically in the form of solid cylindrical rods or rectangular bars. They are usually obtained from the casting or extrusion of bronze ingots. The casting process involves heating the bronze ingot and forcing it through a die to form a cylindrical or rectangular shape.

Bronze ingots are large, rectangular or cylindrical blocks of solid bronze. They are typically produced through a casting process, where molten bronze is poured into molds and allowed to cool and solidify. Once solidified, the ingots are removed from the molds and undergo further processing, such as hot or cold working, to achieve the desired shape and dimensions.