Bms Bulut Makina DIGIROCK-RB, Operational Manual

Page: 11 / 20

11
14 Test Method
Test method Indenter
Pre-load
(kgf
Total load
(kgf)
Field of Application
HRA
Diamond cone
10 60
Surface hardened parts with thin cases (≥0,4 mm)
HRB
1/16" ball
10 100
Nonferrous metals, unhardened steels
HRC
Diamond cone
10 150
Hardened steels
HRD
Diamond cone
10 100
Surface hardened parts with medium cases
HRE
1/8" ball
10 100
Aluminum and magnesium alloys, antifriction
metals,synetic metals
HRF
1/16" ball
10 60
Annealed cupper alloys, thin sheet metals (≥ 0,6 mm)
HRG
1/16" ball
10 150
Phospor-bronze,melleable iron of medium hardness
HRH
1/8" ball
10 60
Aluminium,zinc,lead,grinding stones
HRK
1/8" ball
10 150
Antifriction and other metals of very low hardness
HRL
1/4" ball
10 60
As HRK and hard rubber
HRM
1/4" ball
10 100
As HRK and HRL,laminated wood
HRP
1/4" ball
10 150
HRR
1/2" ball
10 60
HRK,HRL or HRM and synthetic materials
HRS
1/2" ball
10 100
HRV
1/2" ball
10 150
As HRK,HRL,HRM,HRP,HRR or HRS
HR 15 N
HR 30 N
HR 45 N
Diamond cone
3
15
30
45
As HRA,HRC or HRD ,but especially thin case depth
(≥ 0,18 mm )
HR15T
HR30T
HR45T
1/16" ball
3
15
30
45
As HRB,HRF or HRG but especially for thin sheet
metals (≥ 0,25 mm )
HR15W
HR30W
HR45W
1/8" ball
3
15
30
45
HR15X
HR30X
HR45X
1/4" ball
3
15
30
45
For metals with very low hardness and for very thin
cases, for example thin linings of antifriction
metals,HRX and HRY especially for sintered metals
HR15Y
HR30Y
HR45Y
1/2" ball
3
15
30
45