Brake rotors can be made of six different materials, each with its own advantages. Let’s take a look at each.
1. Cast Iron This is the very definition of old school when it comes to a brake rotor. It’s one or two pieces and gets the job done. In fact, it’s the most common material for brake rotors. The right design (usually two-piece) can even work well in a performance vehicle. However, it’s also the heaviest option, which affects the overall weight of your car and its handling, since that weight is right up there with your front wheels.
2. Steel Steel has been the racer’s choice for years because a steel brake rotor is thinner, weighs less and handles heat better. The downside: Steel rotors aren’t as durable as some others, and warped rotors can cause noise and a pulsating pedal when you brake.
3. Layered Steel Layering sheets of steel together and laminating them makes them resistant to the warping you might find in a straight steel brake rotor. It’s a favorite of racers who don’t want frequent brake rotor replacement and repair, but manufacturers are currently only targeting professional racers and production is limited, so it’s not terribly common in passenger vehicle applications.
4. Aluminum Aluminum brake rotors dissipate heat quickly, but they also melt at a lower temperature than other options. Aluminum is a favorite for motorcycles, which weigh less and are easier on the rotors when braking than a heavy car, truck or SUV.
5. High Carbon These are iron, but with a lot of carbon mixed in. They can take a lot of heat and dissipate it quickly. The metallic content helps the rotor avoid cracking under high stress, and brake noise and vibration are reduced as well. The only downside is the price, which is significantly higher than straight iron or aluminum.
6. Ceramic What’s your favorite supercar? Ferrari? Porsche? Lamborghini? Odds are it’s packing ceramic brake rotors. They offer the highest heat capacity (85 percent higher than cast iron) and superior dissipation, and they maintain a more consistent force and pressure as the temperature of the rotors rises. Ceramic is the highest-performance brake rotor available today.
conventional automotive brake rotors are cast from G3000 grey cast iron. These work well with a pad material designed to operate using adherent friction. Most of the European system rotors are cast from a high carbon G4000 grey cast iron.
本田说， 当你的刹车盘的厚度小于一定的尺寸的时候就要换了。 事实上rotor不是一块精钢， 而由两层组成。 里面的铸铁和外表真正的刹车层。 外面那一层即使生锈， 踩几脚锈就可以磨掉锈了。 但是如果磨盘到了铸铁层，ROTOR就报废了。为啥单个ROTOR从30刀到100刀都有， 材料不同，刹车层的厚度也不同。 原装的盘我踩到15万公里。下面的盘是后轮的分泵卡死， 几千公里就废了， 但是可以看到双层。雅阁的后刹搞的我头大。
我的rotor到了16万迈。已经陷进去1毫米，估计不能resurface. 打算去滴乐买付原装的，再开16万迈。
外层磨光了， 寿命就到了。 还所谓复合材料的高科技，高技术。 不过有一定的道理， 很多的PARTS的确不一定要钢板一块。
ROTOR MATERIALS
Brake rotors can be made of six different materials, each with its own advantages. Let’s take a look at each.
1. Cast Iron
This is the very definition of old school when it comes to a brake rotor. It’s one or two pieces and gets the job done. In fact, it’s the most common material for brake rotors. The right design (usually two-piece) can even work well in a performance vehicle. However, it’s also the heaviest option, which affects the overall weight of your car and its handling, since that weight is right up there with your front wheels.
2. Steel
Steel has been the racer’s choice for years because a steel brake rotor is thinner, weighs less and handles heat better. The downside: Steel rotors aren’t as durable as some others, and warped rotors can cause noise and a pulsating pedal when you brake.
3. Layered Steel
Layering sheets of steel together and laminating them makes them resistant to the warping you might find in a straight steel brake rotor. It’s a favorite of racers who don’t want frequent brake rotor replacement and repair, but manufacturers are currently only targeting professional racers and production is limited, so it’s not terribly common in passenger vehicle applications.
4. Aluminum
Aluminum brake rotors dissipate heat quickly, but they also melt at a lower temperature than other options. Aluminum is a favorite for motorcycles, which weigh less and are easier on the rotors when braking than a heavy car, truck or SUV.
5. High Carbon
These are iron, but with a lot of carbon mixed in. They can take a lot of heat and dissipate it quickly. The metallic content helps the rotor avoid cracking under high stress, and brake noise and vibration are reduced as well. The only downside is the price, which is significantly higher than straight iron or aluminum.
6. Ceramic
What’s your favorite supercar? Ferrari? Porsche? Lamborghini? Odds are it’s packing ceramic brake rotors. They offer the highest heat capacity (85 percent higher than cast iron) and superior dissipation, and they maintain a more consistent force and pressure as the temperature of the rotors rises. Ceramic is the highest-performance brake rotor available today.
https://carfromjapan.com/article/car-maintenance/what-are-brake-rotors-made-of/
conventional automotive brake rotors are cast from G3000 grey cast iron. These work well with a pad material designed to operate using adherent friction. Most of the European system rotors are cast from a high carbon G4000 grey cast iron.
不觉得普通日车会用夹层。
还有重厚度哪来的， 不是贴层磨损了吗？ 我敢打赌，如果你用砂轮机磨， 你肯定看到双层