In the manufacturing of automotive parts, certain components necessitate the use of steel or iron in forging due to their requirement to withstand high loads or possess specific strength, hardness, and durability characteristics.
For instance, some automotive engine parts such as drive shafts, connecting rods, and certain gearbox components are typically made from steel or iron because they endure high speeds, elevated temperatures, and heavy loads.
Moreover, brake system components in automobiles and motorcycles, such as brake discs and calipers, are usually manufactured from steel as they operate in high-temperature and high-pressure environments.
In summary, within the automotive industry, certain parts that require high performance, durability, and functionality under specific conditions may require the use of steel or iron for forging.