Brake discs are essential components of the automotive braking system, playing a crucial role in converting the vehicle’s kinetic energy into thermal energy. Brake discs can be manufactured using different materials, such as cast iron, carbon steel, ceramics, and others. Each material has its unique properties and advantages and disadvantages to suit different usage environments and requirements. There are various products available, including solid discs, ventilated discs, modified discs, OE dual-metal discs, and others. Brake discs need to withstand high temperatures during braking, and thus, the material needs to have high-temperature stability to prevent performance degradation. They also need to have good wear resistance to ensure a long lifespan. For high-performance vehicles, they require superior wear resistance to withstand high-intensity braking. Good brake discs not only allow for quick and efficient braking but also prevent juddering or locking during the braking process. High-performance brake discs use environmentally friendly materials like ceramics to reduce harmful gas emissions, in compliance with modern automotive environmental requirements.