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Portable Leeb Hardness Tester Probes

Bagikan Produk

Ada 7 jenis probe untuk bekerja dengan Leeb hardness tester untuk aplikasi yang berbeda, yaitu D / DC / D+15 / C / G / E /DL.

  • Perangkat Dampak Universal D – Untuk sebagian besar persyaratan pengujian kekerasan.
  • DC – Digunakan di ruang yang sangat terbatas, mis. dalam lubang, silinder atau untuk pengukuran internal pada mesin rakitan.
  • DL – Untuk pengukuran di ruang yang sangat terbatas atau di dasar alur.
  • D+15 – Untuk pengukuran di alur atau permukaan yang tersembunyi.
  • C – Komponen yang diperkeras permukaan, pelapis, komponen berdinding tipis atau komponen sensitif benturan (lekukan berukuran kecil).
  • G – Komponen berat atau kasar padat. misalnya coran dan tempa berat.
  • E – Untuk material super keras.

Measuring range of hardness tester probes

Material HardnessHardness scaleImpact device
D/DCD+15CGE (imported)DL
Steel and cast steelHRC17.9~68.519.3~67.920.0~69.5 22.4~70.720.6~68.2
HRB59.6~99.6  47.7~99.9 37.0~99.9
HRA59.1~85.8   61.7~88.0 
HB127~65180~63880~68390~64683~66381~646
HV83~97680~93780~996 84~104280~950
HS32.2~99.533.3~99.331.8~102.1 35.8~102.630.6~96.8
SteelHB143~650     
CWT. steelHRC20.4~67.119.8~68.220.7~68.2 22.6~70.2 
HV80~89880~935100~941 82~1009 
Stainless steelHRB46.5~101.7     
HB85~655     
HV85~802     
GC. ironHRC      
HB93~334  92~326  
HV      
NC. ironHRC      
HB131~387  127~364  
HV      
C. AlumHB19~164 23~21032~168  
HRB23.8~84.6 22.7~85.023.8~85.5  
BrassHB40~173     
HRB13.5~95.3     
BronzeHB60~290     
CopperHB45~315     

  Tolerance and repeatability

No.impact deviceHardness value of Leeb standard hardness blockAccuracy of displayed valueRepeatability of displayed value
1D790±40HLD 530±40HLD±6 HLD ±10 HLD6 HLD 10 HLD
2DC790±30HLDC 530±40HLDC±6 HLDC ±10 HLDC6 HLDC 10 HLDC
3DL894±40HLDL 736±40HLDL±12 HLDL12 HLDL
4D+15795±40HLD+15 544±40HLD+15±12 HLD+1512 HLD+15
5G590±40HLG 500±40HLG±12 HLG12 HLG
6E755±40HLE 508±40HLE±12 HLE12 HLE
7C851±40HLC 590±40HLC±12 HLC12 HLC

  Technical specifications of impact devices

Types of impact deviceDC(D)/DLD+15CGE(imported)
Impact 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
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
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 sample940HV940HV1000HV650HB1200HV
Roughness of sample surface1.6μm1.6μm0.4μm6.3μm1.6μm
Minimum 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. depth of layer thickness for surface
5mm
≥0.8mm
5mm
≥0.8mm
1mm
≥0.2mm
10mm
≥1.2mm
5mm
≥0.8mm

  Size of tip indentation

Hardness
300HV
Indentation diameter0.54mm0.54mm0.38mm1.03mm0.54mm
Depth of indentation24μm24μm12μm53μm24μm
Hardness
600HV
Indentation diameter0.54mm0.54mm0.32mm0.90mm0.54mm
Depth of indentation17μm17μm8μm41μm17μm
Hardness
800HV
Indentation diameter0.35mm0.35mm0.35mm 0.35mm
Depth of indentation10μm10μm7μm 10μm
  D: General test.
DC : Testing hole or inner of cylinder.
DL : Test slender narrow groove or hole
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
surface cast
steel.
E :
Test super high
hardness
Material.