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Portable Leeb Hardness Tester RHL50
Portable Leeb Hardness Tester RHL50
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Portable Leeb Hardness Tester RHL50

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$575.00
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$575.00
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Calibration Certificate: All of our products coming with original calibration certificate. Also, every week there are hundreds of our products are getting third party calibration certificates (such as UKAS and NIST approved institutes and companies) in Europe and North America.

1.1 Features

  • LCD display of 128×64 matrix is used.
  • Converts to all common hardness scales(HV ,HB,HRC,HRB,HRA,HS).
  • English displaying and menu operating, the operation is easy and convenient.
  • With RS232 interface, multiple communication modes are adopted to meet customized requirements of various users.
  • Equipped with 7 types of impact devices which need not to be recalibrated when changing them, the system can identify the type of impact device automatically.
  • Max 600 groups impact times:32?1?of data can be stored at internal non volatile data storage.
  • Upper and lower limit of hardness can be preset; When the tested value exceeds the limits, alarm will send out automatically to make convenient for the requirements of batch measurements.
  • Back light display has been used to make convenient for the use in poor light.
  • Test values software calibration function.
  • Material of “cast steel” is added; HB values can be read out directly when D/DC impact device is used to measure “cast steel” work piece.
  • Printer be separated from main unit and copies of testing results can be printed as required.
  • Power is two of AA battery. Continuous working period: approx. 100 h (no back light on).
  • Software of PC can be installed according to the requirements of user, the function will be more powerful to satisfy the more strict demands of quality control and management.

1.2 Main Application and Testing Range
1.2.1 Main Application

  • The assembled machinery and permanently installed parts
  • Die cavity of molds
  • Heavy work piece
  • Failure analysis of pressure vessel, steam turbo-generator set and other equipment
  • Narrow testing space where work piece installed
  • Bearings and other parts
  • Cases which require the test result with normalized original recording
  • Material identification of the metal material warehouse
  • Quick tests of large range and multipoint measuring positions for heavy workpiece

1.2.2 Testing Range

Testing range see table 1 and table 2.

Table 1

Material Hardness method Impact device
Steel and cast steel D/DC D+15 C G E DL
HRC 17.9?68.5 19.3?67.9 20.0?69.5   22.4?70.7 20.6?68.2
HRB 59.6?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   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
Hammered steel HB 143~650          
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          
Gray cast iron HRC            
HB 93?334     92?326    
HV            
Nodular cast  iron HRC            
HB 131?387     127?364    
HV            

Cast aluminum

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          
HRB 13.5?95.3          
Bronze (copper-aluminum/copper-tin alloys) HB 60?290          

Wrought copper

alloys

HB 45?315          

1.3 Types and specification

No. Material HLD Strength ?b(MPa)
1 Mild steel 350?522 374?780
2 High-carbon steel 500?710 737?1670
3 Cr steel 500?730 707?1829
4 Cr-V steel 500?750 704?1980
5 Cr-Ni steel 500?750 763?2007
6 Cr-Mo steel 500?738 721?1875
7 Cr-Ni-Mo steel 540?738 844?1933
8 Cr-Mn-Si steel 500?750 755?1993
9 Super strength steel 630?800 1180?2652
10 Stainless steel 500?710 703?1676

Table 3

Non conventional impact devices

DC(D)/DL D+15 C G E

Impacting energy
Mass of impacting body

11Mj
5.5g/7.2g

11mJ
7.8g

2.7mJ
3.0g

90mJ
20.0g

11mJ
5.5g

Test tip Hardness Diameter of 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
86(147)/ 75mm
50g

20mm
162mm
80g

20mm
141mm
75g

30mm
254mm
250g

20mm
155mm
80g

Max. hardness of workpiece

940HV

940HV

1000HV

650HB

1200HV

Mean roughness of workpiece surface of the Ra

1.6?m

1.6?m

0.4?m

6.3?m

1.6?m

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 harden

5mm
?0.8mm

5mm
?0.8mm

1mm
?0.2mm

10mm
?1.2mm

5mm
?0.8mm

Size of tip indentation

Hardness 300HV

Indentation
diameter

0.54mm

0.54mm

0.38mm

1.03mm

0.54mm

Indentation
depth

24?m

24?m

12?m

53?m

24?m

Hardness 600HV

Indentation
diameter

0.54mm

0.54mm

0.32mm

0.90mm

0.54mm

Indentation
depth

17?m

17?m

8?m

41?m

17?m

Hardness 800HV

Indentation
diameter

0.35mm

0.35mm

0.35mm

---

0.35mm

Indentation
depth

10?m

10?m

7?m

---

10?m

Available type of impact device

 

D:
General test

D+15:
groove or reentrant surface

C:
small, light, thin parts or surface of hardend layer

G:
large, thick, heavy or rough surface steel

E:
super high hardness material

 

DC:
Hole or hollow-cylindrical test

       
 

DL:
Slender narrow groove or hole test