A1 A2 A3 A4 A5
A1-A5: Hardness samples
“ ”: Impress of hardness scales to be converted
“ ”: Impress of HL hardness scales
Figure 3
4.2.3 Testing result
In front of Leeb hardness symbol HL, expresses the hardness value; behind HL expresses type of
impact device. For example: 700HLD expresses using D type of impact device measured Leeb hardness value
is 700；
For other hardness method converted from Leeb hardness, put the symbol of corresponding hardness
method in front of Leeb hardness symbol. For example: 400HVHLD expresses using D type of impact device
measured Leeb hardness value converted Vickers hardness value is 400.
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