Statements (31)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
hardness test
|
| gptkbp:appliesLoad |
1500 kgf
3000 kgf 500 kgf |
| gptkbp:BHNFormula |
BHN = 2P / (π D (D - sqrt(D^2 - d^2)))
|
| gptkbp:commonIn |
metals
alloys |
| gptkbp:computes |
Brinell Hardness Number (BHN)
|
| gptkbp:D |
diameter of ball in mm
|
| https://www.w3.org/2000/01/rdf-schema#label |
Brinell hardness test
|
| gptkbp:introducedIn |
1900
|
| gptkbp:inventedBy |
gptkb:Johan_August_Brinell
|
| gptkbp:measures |
diameter of indentation
|
| gptkbp:notRecommendedFor |
thin materials
very hard materials |
| gptkbp:PP |
applied load in kgf
|
| gptkbp:processor |
apply load for specified time
calculate BHN using formula measure indentation diameter |
| gptkbp:relatedTo |
gptkb:Vickers_hardness_test
gptkb:Rockwell_hardness_test Knoop hardness test |
| gptkbp:standardizedBy |
ASTM E10
|
| gptkbp:usedFor |
measuring hardness of materials
|
| gptkbp:usesIndenter |
hardened steel ball
carbide ball |
| gptkbp:דת |
diameter of indentation in mm
|
| gptkbp:bfsParent |
gptkb:Vickers_hardness_test
gptkb:Strength_of_Materials gptkb:Brinell_Medal |
| gptkbp:bfsLayer |
7
|