Yield stress from tensile test and yield stress from hardness tests

  1. Why can there sometimes be a difference observed between them?
     
  2. jcsd
  3. Mech_Engineer

    Mech_Engineer 2,299
    Science Advisor
    Gold Member

    Because a hardness test is a highly nonlinear test which is only able to approximate yield strength of the material using some loose relationships.
     
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