Rockwell C – Vickers – Brinell Hardness Conversions

Converts between:

• (HRC) Rockwell C scale hardness (150kgf)
• (HV) Vickers hardness
• (HB) Brinell hardness
       10mm ball
       load 3000kgf
• Rockwell hardness:
  (HRA) A scale load 60kgf diamond conical indenter
  (HRB) B scale load 100kgf diameter 1.6mm (1/16in) ball
  (HRD) D scale load 100kgf diamond conical indenter
• Rockwell superficial hardness; diamond conical indenter:
  15-N scale load 15kgf
  30-N scale load 30kgf
  45-N scale load 45kgf
• (HS) Shore hardness
• Tensile strength (approximate value) MPa