Brake rotor hardness number and heat treatment
Brake rotor hardness number and heat treatment
(OP)
I am a member of a mini-baja team at the University of Louisiana. We are planning on having our brake rotors machined and heat treated, but we do not know what hardness the rotor should be. If any one has any ideas on what is a good hardness for a brake rotor, or any instructions on temperature or rate of heat treatment, please let me know.





RE: Brake rotor hardness number and heat treatment
But to answer your question: Why heat-treat a brake disc? If you are using it as intended, it will be thermal cycling rapidly anyway. When your driver stomps on the brake just before he dives into a water hazard you're going to get a pretty harsh heat/quench cycle.
If you feel the urge to heat-treat the brake disc, throw it in the oven at around 450F fo allow it to stress-relieve. At least this way whan you machine it and use it the first time it won't spontaneously stress-relieve and assume the shape of a potato chip.
RE: Brake rotor hardness number and heat treatment
Best Regards,
Heckler
Sr. Mechanical Engineer
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