Specifications of hardness tester
Hardness scale: HL, HB, HRB, HRC, HRA, HV, HS
Memory: 48～600 groups (impact times: 32～1)
Measuring range: HLD(170～960) See below table 1 and table 2
Accuracy: ±6HLD (760±30HLD) error of displayed value
repeatability of displayed value: 6HLD (760±30HLD)
Standard Impact Device: D
Optional Impact Devices: DC/D+15/G/C/DL
Max. Workpiece Hardness: 996HV (For Impact Devices D/DC/DL/D+15/C)
646HB(For Impact Device G)
Min. Radius of Workpiece (convex/concave) Rmin = 50mm (with special support ring Rmin= 10mm)
Min. Workpiece weight: 2~5kg on stable support
0.05~2kg with compact coupling
Min. Workpiece thickness: 5mm (Impact Devices D/DC/DL/D+15)
1mm (Impact Device C)
10mm (Impact Device G)
Min. thickness of hardened surface: 0.8mm
Power: Rechargeable Li lon battery 3.7V/600mA, 4 years life time
Continuous Working time: approx. 100 h (no back light off)
Charging time: 2-3.5 h
Operating temperature: 0~40 oC
Relative humidity: ≤90%
Overall dimensions: 152×84×34mm (main unit)
Weight: 0.3kg (main unit)
Standard delivery of portable leeb hardness tester RHL10
●Main unit
●Impact Device type D
●Test block with HLD value
●Charger
●Nylon brush
●Small supporting ring
●DataView Software
●USB Communication cable
●Calibration Certificate
●Instruction manual
●Warranty card
●Carrying case
●Normal and special type support rings (14pcs)
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Material
|
Hardness method
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Impact device
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|||||
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D/DC
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D+15
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C
|
G
|
E
|
DL
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||
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Steel and cast steel
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HRC
|
17.9～68.5
|
19.3～67.9
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20.0～69.5
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22.4～70.7
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20.6～68.2
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HRB
|
59.6～99.6
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47.7～99.9
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37.0～99.9
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HRA
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59.1~85.8
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61.7～88.0
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HB
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127～651
|
80～638
|
80～683
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90～646
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83～663
|
81～646
|
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HV
|
83～976
|
80～937
|
80～996
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84～1042
|
80～950
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HS
|
32.2～99.5
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33.3～99.3
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31.8～102.1
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35.8～102.6
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30.6～96.8
|
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Hammered steel
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HB
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143~650
|
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Cold work tool steel
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HRC
|
20.4～67.1
|
19.8～68.2
|
20.7～68.2
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22.6～70.2
|
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HV
|
80～898
|
80～935
|
100～941
|
|
82～1009
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Stainless steel
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HRB
|
46.5～101.7
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HB
|
85～655
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HV
|
85～802
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Gray cast iron
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HRC
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HB
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93～334
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|
92～326
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HV
|
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Nodular cast iron
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HRC
|
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HB
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131～387
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|
127～364
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HV
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Cast aluminum
alloys
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HB
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19～164
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23～210
|
32～168
|
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HRB
|
23.8～84.6
|
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22.7～85.0
|
23.8～85.5
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Brass(copper-zinc alloys)
|
HB
|
40～173
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HRB
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13.5～95.3
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Bronze (copper-aluminum/copper-tin alloys)
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HB
|
60～290
|
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Wrought copper
alloys
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HB
|
45～315
|
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No.
|
Material
|
HLD
|
Strength σb(Mpa)
|
|
1
|
Mild steel
|
350～522
|
374～780
|
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2
|
High-carbon steel
|
500～710
|
737～1670
|
|
3
|
Cr steel
|
500～730
|
707～1829
|
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4
|
Cr-V steel
|
500～750
|
704～1980
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5
|
Cr-Ni steel
|
500～750
|
763～2007
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6
|
Cr-Mo steel
|
500～738
|
721～1875
|
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7
|
Cr-Ni-Mo steel
|
540～738
|
844～1933
|
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8
|
Cr-Mn-Si steel
|
500～750
|
755～1993
|
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9
|
Super strength steel
|
630～800
|
1180～2652
|
|
10
|
Stainless steel
|
500～710
|
703～1676
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