1 Scope
This document specifies the Vickers hardness test method for the three different ranges
of test force for metallic materials including hardmetals and other cemented carbides
(see Table 1).
Table 1
—
Ranges of test force
| Ranges of test force,F N
|
Hardness symbol | Designation |
|---|---|---|
| F ≥ 49,03 | ≥HV 5 | Vickers hardness test |
| 1,961 ≤ F < 49,03 | HV 0,2 to <HV 5 | Low-force Vickers hardness test |
| 0,009 807 ≤ F < 1,961 | HV 0,001 to <HV 0,2 | Vickers microhardness test |
The Vickers hardness test is specified in this document for lengths of indentation
diagonals between 0,020 mm and 1,400 mm. Using this method to determine Vickers hardness
from smaller indentations is outside the scope of this document as results would suffer
from large uncertainties due to the limitations of optical measurement and imperfections
in tip geometry.
A periodic verification method is specified for routine checking of the testing machine
in service by the user.
For specific materials and/or products, particular International Standards exist.