Bronze is traditionally and most commonly an alloy of copper and tin. The addition of tin to copper increases its hardness and durability, making it suitable for various applications like tools, weapons, and statues. Bronze is an alloy primarily composed of copper and tin. Brass is another common copper alloy, but it is an alloy of copper and zinc. Different types of bronze may contain other elements like phosphorus, manganese, aluminum, or silicon, but the primary components are copper and tin.