Portable Leeb Hardness Tester Probes
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- Commodity name: Portable Leeb Hardness Tester Probes
- Commodity ID: 1105904251126304768
There are 7 kinds of probes to work with Leeb hardness tester for different applications, which is D / DC / D+15 / C / G / E /DL.● Universal Impact Device D - For the majority of hardness testing requirements.● DC - Used in very confined spaces, e.g. in holes, cylinders or for internal measurements on assembled machines.● DL - For measurements in extremely confined spaces or at the base of grooves.● D+15 - For measurements in grooves or recessed surface.● C - Surface hardened components, coatings, thin walled or impact sensitive components (small measuring indentation).● G - Solid heavy or rough components. e.g. heavy castings and forgings.● E - For super hard materials.Measuring range of hardness tester probesMaterial Hardness
Hardness scale
Impact device
D/DC
D+15
C
G
E (imported)
DL
Steel and cast steel
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
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
Steel
HB
143~650
CWT. 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
GC. iron
HRC
HB
93~334
92~326
HV
NC. iron
HRC
HB
131~387
127~364
HV
C. Alum
HB
19~164
23~210
32~168
HRB
23.8~84.6
22.7~85.0
23.8~85.5
Brass
HB
40~173
HRB
13.5~95.3
Bronze
HB
60~290
Copper
HB
45~315
Tolerance and repeatability
No.
impact device
Hardness value of Leeb standard hardness block
Accuracy of displayed value
Repeatability of displayed value
1
D
790±40HLD 530±40HLD
±6 HLD ±10 HLD
6 HLD 10 HLD
2
DC
790±30HLDC 530±40HLDC
±6 HLDC ±10 HLDC
6 HLDC 10 HLDC
3
DL
894±40HLDL 736±40HLDL
±12 HLDL
12 HLDL
4
D+15
795±40HLD+15 544±40HLD+15
±12 HLD+15
12 HLD+15
5
G
590±40HLG 500±40HLG
±12 HLG
12 HLG
6
E
755±40HLE 508±40HLE
±12 HLE
12 HLE
7
C
851±40HLC 590±40HLC
±12 HLC
12 HLC
Technical specifications of impact devices
Types of impact device
DC(D)/DL
D+15
C
G
E(imported)
Impact energy
Mass of impact body11mJ
5.5g/7.2g11mJ
7.8g2.7mJ
3.0g90mJ
20.0g11mJ
5.5gTest tip hardness
Diameter of test tip
Material of test tip1600HV
3mm
Tungsten carbide1600HV
3mm
Tungsten carbide1600HV
3mm
Tungsten carbide1600HV
5mm
Tungsten carbide5000HV
3mm
DiamondImpact device diameter
Impact device length
Impact device weight20mm
86(147)/ 75mm
50g20mm
162mm
80g20mm
141mm
75g30mm
254mm
250g20mm
155mm
80gMax. hardness of sample
940HV
940HV
1000HV
650HB
1200HV
Roughness of sample surface
1.6μm
1.6μm
0.4μm
6.3μm
1.6μm
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
0.05~2kgMin. thickness of sample Coupling tightly
Min. depth of layer thickness for surface5mm
≥0.8mm5mm
≥0.8mm1mm
≥0.2mm10mm
≥1.2mm5mm
≥0.8mmSize of tip indentation
Hardness
300HVIndentation diameter
0.54mm
0.54mm
0.38mm
1.03mm
0.54mm
Depth of indentation
24μm
24μm
12μm
53μm
24μm
Hardness
600HVIndentation diameter
0.54mm
0.54mm
0.32mm
0.90mm
0.54mm
Depth of indentation
17μm
17μm
8μm
41μm
17μm
Hardness
800HVIndentation diameter
0.35mm
0.35mm
0.35mm
0.35mm
Depth of indentation
10μm
10μm
7μm
10μm
D: General test.
DC : Testing hole or inner of cylinder.
DL : Test slender narrow groove or holeD+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.
Key words