1. A
  2. B
  3. C
  4. D
  5. E
  6. F
  7. G
  8. H
  9. I
  10. J
  11. K
  12. L
  13. M
  14. N
  15. O
  16. P
  17. Q
  18. R
  19. S
  20. T
  21. U
  22. V
  23. W
  24. X
  25. Y
  26. Z

Vickers hardness

A common scale used to determine the hardness of a material (using a pyramidal diamond indenter). The impression created by the diamond on the surface is measured and the hardness calculated. Stainless steel, for example, ranges from 200 to 240 HV, titanium 210 HV, sapphire crystal 2000 HV and diamond 4500 to 10,000 HV.