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Product Details:
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| Impacting Energy: | 11mJ | Mass Of Impact Body: | 5.5g/7.2g |
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| Test Tip Hardness: | 1600HV | Dia. Test Tip: | 3mm |
| Material Of Test Tip: | Tungsten Carbide | Device Type: | Type DL |
| HRC: | 20.6～68.2 | HRB: | 37.0～99.9 |
| HB: | 81～646 | ||
| High Light: | impact probe leeb hardness tester,dl leeb hardness tester,1600HV leeb hardness tester |
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Impact Device DL Impact Probe Leeb hardness test device Hardness probe
Impack device DL hardness probe DL for hardness testing of steel, cast steel with HRC, HRB,HV,HS and HB scales.
Its basic principle is that an impingent body with a certain mass impinges on the surface of the sample under a certain test force, and the impact velocity and rebound velocity at a distance of 1mm from the surface of the sample are measured. Using the electromagnetic principle, the voltage induced is proportional to the velocity. The value of Hardness is expressed as the ratio of the rebound velocity of the impact body to the impact velocity.
impact devices
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Material |
Method |
Impact device |
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D/DC |
D+15 |
C |
G |
E |
DL |
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Steel and cast steel
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HRC |
20～68.5 |
19.3～67.9 |
20.0～69.5 |
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22.4～70.7 |
20.6～68.2 |
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HRB |
38.4～99.6 |
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47.7～99.9 |
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37.0～99.9 |
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HRA |
59.1～85.8 |
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61.7～88.0 |
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HB |
127～651 |
80～638 |
80～683 |
90～646 |
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 |
33.3～99.3 |
31.8～102.1 |
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35.8～102.6 |
30.6～96.8 |
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Cold work tool steel |
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 |
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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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Grey cast iron
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HRC |
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HB |
93～334 |
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92～326 |
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HV |
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Nodular cast iron |
HRC |
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HB |
131～387 |
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127～364 |
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HV |
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Cast aluminium alloys |
HB |
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)
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HB |
40～173 |
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HRB |
13.5～95.3 |
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BRONZE(copper-aluminium/tin alloys) |
HB |
60～290 |
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Wrought copper alloys |
HB |
45～315 |
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Available type of impact device |
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DC: Test hole or hollow cylindrical
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D+15: Test groove or reentrant surface
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C:Test small, light, thin parts and surface of hardened layer |
G: Test large, thick, heavy and rough surface steel |
E: Test super high hardness material |
DL: Test slender narrow groove or hole |
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Type of impact device |
DC/D/DL |
D+15 |
C |
G |
E |
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Impacting energy Mass of impact body |
11mJ 5.5g/7.2g |
11mJ 7.8g |
2.7mJ 3.0g |
90mJ 20.0g |
11mJ 5.5g |
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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 |
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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 |
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Max. hardness of sample |
940HV |
940HV |
1000HV |
650HB |
1200HV |
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Mean roughness value of sample surface Ra: |
1.6μm |
1.6μm |
0.4μm |
6.3μm |
1.6μm |
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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 |
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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 |
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Size of tip indentation
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Hardness 300HV |
Indentation diameter Depth of indentation |
0.54mm
24μm |
0.54mm
24μm |
0.38mm
12μm |
1.03mm
53μm |
0.54mm
24μm |
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Hardness 600HV |
Indentation diameter Depth of indentation |
0.54mm
17μm |
0.54mm
17μm |
0.32mm
8μm |
0.90mm
41μm |
0.54mm
17μm |
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Hardness 800HV |
Indentation diameter Depth of indentation |
0.35mm
10μm |
0.35mm
10μm |
0.35mm
7μm |
--
-- |
0.35mm
10μm |
Support rings for Shaped Materials:
Contact Person: Ms. Shifen Yuan
Tel: 8610 82921131,8613910983110
Fax: 86-10-82916893
