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Specifications

Hardness Tester Accessories
Testing Conditions
                              Type of Hardness Tester Accessories
           DC(D)/DL
        D+15
            C
G
E
Impacting energy
Mass of impact body
11mJ
5.5g/7.2g
11mJ
7.8g
2.7mJ
3.0g
90mJ
20.0g
11mJ
5.5g
Test tip hardness:
Dia. Test tip:
Material of test tip:
1600HV
3mm
Tungsten carbide
1600HV
3mm
Tungsten carbide
1600HV
3mm
Tungsten carbide
1600HV
5mm
Tungsten carbide
5000HV
3mm
synthetic diamond
Impact device diameter:
Impact device length:
Impact device weight:
20mm
 
 
20mm
162mm
80g
20mm
141mm
75g
30mm
254mm
250g
20mm
155mm
80g
Max. hardness of sample
940HV
940HV
1000HV
650HB
1200HV
Mean roughness value of sample surface Ra:
1.6μm
1.6μm
0.4μm
6.3μm
1.6μm
Min. weight of sample:
Measure directly Need support firmly
Need coupling tightly
>5kg
2～5kg
0.05～2kg
>5kg
2～5kg
0.05～2kg
>1.5kg
0.5～1.5kg
0.02～0.5kg
>15kg
5～15kg
0.5～5kg
>5kg
2～5kg
0.05～2kg
Min. thickness of sample Coupling tightly
Min. layer thickness for surface hardening
5mm
≥0.8mm
5mm
≥0.8mm
1mm
≥0.2mm
10mm
≥1.2mm
5mm
≥0.8mm

Measuring Range of ADIO Leeb Hardness Tester
Material
 
Method
 
Impact device
D/DC
D+15
C
C
E
DL
Steel and cast steel
HRC
 20～68.5 19.3～67.9 20.0～69.5   22.4～70.7 20.6～68.2
HRB 38.4～99.6     47.7～99.9   37.0～99.9
HRA 59.1～85.8       61.7～88.0  
HB 127～651 80～638 80～683 90～646 83～663 81～646
HV 83～976 80～937 80～996   84～1042 80～950
HS 32.2～99.5 33.3～99.3 31.8～102.1   35.8～102.6 30.6～96.8
Cold work tool steel
HRC
 20.4～67.1
 
 19.8～68.2 20.7～68.2   22.6～70.2  
HV 80～898 80～935 100～941   82～1009  
Stainless steel
HRB
 46.5～101.7          
HB 85～655          
HV 85～802          
Grey cast iron
HRB
            
HB 93～334     92～326    
HV            
Nodular cast iron
HRB
            
HB 131～387     127～364    
HV            
Cast aluminium alloys
HB
 19～164   23～210 32～168    
HRB 23.8～84.6   22.7～85.0 23.8～85.5    
BRASS (copper zinc alloys)
HB
 40～173          
BRONZE(copper cluminium/tin alloys)
HRB
 13.5～95.3          
Wrought HB 60～290          
copper alloys HB 45～315          
Available type of impact device  
DC: Test hole or hollow cylindrical
 D+15:Test groove or reentrant surface C:Test small,light,thin parts and surface of hardened layer G:Test large,thick, heavy and rough E: Test super high hardness material DL: Test slender narrow groove or hole
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Hardness Tester Accessories