Iron alloys are materials made by combining iron with other elements, which enhance their properties. Common alloying elements include carbon, manganese, and chromium. These additions improve strength, hardness, and resistance to corrosion, making iron alloys suitable for various applications, such as construction and manufacturing. One of the most well-known iron alloys is steel, which contains carbon and is widely used in buildings, vehicles, and tools. Another important alloy is cast iron, known for its excellent castability and wear resistance, often used in cookware and engine blocks. These alloys play a crucial role in modern engineering and industry.