Alloy composition refers to the specific mixture of metals and other elements that create an alloy. Alloys are designed to enhance certain properties, such as strength, corrosion resistance, or ductility. Common examples include steel, which is primarily made of iron and carbon, and bronze, a mixture of copper and tin. The composition of an alloy can significantly affect its characteristics and performance. For instance, adding more carbon to steel can increase its hardness, while including nickel in copper can improve its resistance to corrosion. Understanding alloy composition is crucial for selecting the right material for various applications.