XPost: comp.mobile.android, misc.phone.mobile.iphone   
   From: nuh-uh@nope.com   
      
   On 2022-05-11 5:46 p.m., Andy Burnelli wrote:   
   > sms wrote:   
   >   
   >> On 5/11/2022 5:20 AM, NY wrote:   
   >>> That word "warped" is misleading because it makes people think "wavy".   
   >>   
   >> Yes, in many cases "uneven" would be a better adjective than "warped"   
   >> but there are still cases where the steel brake rotor is deformed from   
   >> heat.   
   >   
   > There are half a dozen materials rotors are made of though, so we'd have to   
   > look up the melting point of each of them to be more precise about melting.   
   > 1. cast iron   
   > 2. steel   
   > 3. stainless steel   
   > 4. laminated steel   
   > 5. high carbon iron (e.g., Sparta CX3.5)   
   > 6. ceramic   
   >   
   >    
   > "To get cast iron hot enough to soften the metal you'd need to generate   
   >   almost 2,300�F range. There isn't a factory stock automotive brake   
   >   system in the world that's capable of generating that kind of heat.   
   >   In fact, you would experience brake pad fade, pad disintegration,   
   >   brake fluid boiling and rotor discoloration long before you  reached   
   > 1,000�F."   
   >   
   >   "To pass the J2928 rotor test, rotors must withstand at least  150   
   > heat cycles on a dynamometer without cracking or showing  any structural   
   > or dimensional failure. "   
      
   1. A test that didn't exist until 2013.   
      
   2. A test that no manufacturer is required to pass.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)