Mail Icon CONTACT

Free Hardness Conversion Chart

Our free hardness conversion chart has details of roundness corrections and minimum thickness requirements.

The hardness conversions include:

  • HRA, HRB, HRC, HRD, HRF
  • HR15N, HR30N, HR45N
  • HR15T, HR30T, HR45T
  • HV
  • HB

All conversions are in accordance with ASTM E140.

PDF Download hardness chart PDF >>

Submit information for poster (UK only) >>

Free Wall Chart