Statements (28)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
hardness test
|
| gptkbp:advantage |
no need for optical measurement
not suitable for very soft materials not suitable for very thin materials quick measurement |
| gptkbp:appliesTo |
major load
minor load |
| gptkbp:commonScale |
Rockwell B
Rockwell C |
| gptkbp:developedBy |
Stanley P. Rockwell
|
| https://www.w3.org/2000/01/rdf-schema#label |
Rockwell hardness test
|
| gptkbp:introducedIn |
1919
|
| gptkbp:measures |
depth of penetration
|
| gptkbp:namedAfter |
Stanley P. Rockwell
|
| gptkbp:relatedTo |
gptkb:Vickers_hardness_test
gptkb:Brinell_hardness_test |
| gptkbp:requires |
indenter
test specimen testing machine |
| gptkbp:result |
Rockwell hardness number (HR)
|
| gptkbp:standardizedBy |
ASTM E18
|
| gptkbp:usedFor |
measuring hardness of materials
|
| gptkbp:usedOn |
metals
plastics |
| gptkbp:uses |
indentation method
|
| gptkbp:bfsParent |
gptkb:Vickers_hardness_test
gptkb:Strength_of_Materials |
| gptkbp:bfsLayer |
7
|