The common friction materials on the market are: semi-metallic materials and ceramic materials.
Semi-metallic brake pads contain metal fibers (such as iron, steel, copper, etc.) and non-metallic fillers. Advantages:
①Good heat dissipation, suitable for high-performance driving.
②Strong wear resistance and long service life.
③Stable braking effect.
Disadvantages:
①Large braking noise.
②Great wear on the brake disc.
③Produces more dust.
Low-metal brake pads contain a small amount of iron, generally steel wool and iron powder, which is a kind of semi-metal.
Advantages:
①. Low noise, less noise during emergency braking, suitable for urban driving.
②. Less wear on the brake disc. The huge friction generated during braking often causes wear on the brake disc. The low-metal brake pad is relatively soft, and the friction has a greater impact on itself, but less wear on the brake disc.
③The cost is relatively low and the price is relatively cheap. It is a good choice for people with a low budget.
Disadvantages:
①Poor heat resistance. It may have an adverse effect on the braking effect under extremely high temperatures.
② The material is relatively soft and has a short service life.
③ It is easy to generate dust.
Ceramic brake pads use special ceramic composite materials. Its material is mainly composed of a combination of mineral fibers, aramid fibers and ceramic fibers.
Advantages:
① Excellent braking performance, especially at high temperatures.
② Extremely low noise, suitable for comfortable driving.
③ Friendly to brake discs and reduces wear.
Disadvantages:
① The cost of ceramic brake pads is relatively high,
② Poor wear resistance and need to be replaced more frequently.