1. Cast iron: common gray cast iron, nickel-chromium-molybdenum low alloy cast iron and vermicular graphite cast iron.

2. Cast steel: It has the advantages of being capable of complex heat dissipation structure design and rapid cooling of the disc body during braking. Meanwhile, after appropriate alloying and heat 

treatment, cast steel brake discs possess good wear resistance, heat resistance and toughness.

3. Forged steel: It features high strength and toughness, as well as excellent resistance to thermal cracking, good wear resistance, thermal fatigue resistance, mechanical properties at both normal 

and high temperatures, and a long service life.

4. Aluminum matrix composites: Brake discs prepared from composite materials with aluminum alloy as the matrix and fibers, whiskers and particles as reinforcing phases.

5. Copper-based composite materials: They are formed by adding friction components and lubrication components to a copper or copper alloy matrix through composite processing. The friction 

components are mostly oxides or carbides of metals or non-metals.

6. Carbon/carbon (C/C) composites: Carbon-based composites reinforced with carbon fibers or graphite fibers.

7. Carbon-ceramic (C/ C-sic) composite material: A new type of brake disc material developed on the basis of C/C composite material, this material is a composite material with 

quasi-three-dimensional carbon fiber integral needled felt as the skeleton reinforcement and deposited carbon, SiC and residual silicon as the matrix.