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Weights: Iron vs Steel vs Ceramic

  1. May 12, 2007 #1
    I have weighed a cast iron brake disc and got an average reading of roughly 4kg, id like to know how a stainless steel disc would compare with this weight (just roughly) and also, if a ceramic plate was added to the iron disc...any help appreciated...thanks!

  2. jcsd
  3. May 12, 2007 #2


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    The average density of most stainless steels is around .28 Lbm/in3
  4. May 16, 2007 #3

    hi, thanks for your reply,

    im just looking for some predictions in kg,

    if a cast iron disc with diameter 0.3m weighs 4kg, then how would a stainless steel disc of the same size match up to that?

    also how much extra weight would a ceramic plate added to the cast iron disc give?

    i took the weight of the iron disc, cant find a steel and ceramic disc, so anyhelp would be great....

  5. May 16, 2007 #4


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    Work out how much volume the steel and ceramic discs would be, multiply each of those values by its density, and you have the weight of the disc.
  6. May 17, 2007 #5
    ^i see, ok great! thanks
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