| Place of Origin: | China |
|---|---|
| Brand Name: | TMTeck |
| Certification: | EN ISO 16859-2016 |
| Model Number: | D |
| Minimum Order Quantity: | 1 |
| Price: | Negotiation |
| Packaging Details: | Carton |
| Delivery Time: | 3-5 work days |
| Payment Terms: | T/T, Western Union |
| Supply Ability: | 100PCS/Two weeks |
| Test Tip Hardness: | 1600HV | Dia. Test Tip: | 3mm |
|---|---|---|---|
| Material Of Test Tip: | Tungsten Carbide | Impact Device Diam: | 20mm |
| Impact Device Weight: | 50g | Available Type Of Impact Device: | General Test |
| High Light: | digital hardness meter,digital hardness tester |
||
D type impact device,D probe of Leeb hardness tester for General test
the main features of other type impact devices of the Leeb hardness tester DC, D + 15, C, G, E, and DL.
DC: Exterior dimension: f20 * 86mm, weight: 50g. The impact device is short and is mainly used in very cramped places such as holes or cylinders.
D + 15: Dimensions: f20 * 162mm, weight: 80g. Small head for groove or concave surface hardness measurement.
C: Overall dimensions: f20 * 141mm, weight: 75g. Minimal impact energy, used to measure small, light, thin parts and surface hardened layers.
G: Overall dimensions: f30 * 254mm, weight: 250g. Large impact energy, low requirements for measuring surface. For large, heavy and rough surface forgings.
E: Dimensions: f20 * 162, weight 80g. The indenter is artificial diamond. It is used for the determination of extremely hard materials.
DL: Dimensions: f20 * 202mm, Weight: 80g The head is thinner and is used to measure the hardness of narrow grooves and gear faces.
| Material | Method | Impact device | |||||
| D/DC | D+15 | C | G | 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
|
HRC | ||||||
| HB | 93～334 | 92～326 | |||||
| HV | |||||||
| Nodular cast iron | HRC | ||||||
| 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 | |||||
| HRB | 13.5～95.3 | ||||||
| BRONZE(copper-aluminium/tin alloys) | HB | 60～290 | |||||
| Wrought 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 surface steel |
E: Test super high hardness material | DL: Test slender narrow groove or hole | |
| Type of impact device | 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 86(147)/ 75mm 50g |
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 |
|
Size of tip indentation
|
||||||
| Hardness 300HV |
Indentation diameter Depth of indentation |
0.54mm
24μm |
0.54mm
24μm |
0.38mm
12μm |
1.03mm
53μm |
0.54mm
24μm |
| Hardness 600HV |
Indentation diameter Depth of indentation |
0.54mm
17μm |
0.54mm
17μm |
0.32mm
8μm |
0.90mm
41μm |
0.54mm
17μm |
| Hardness 800HV |
Indentation diameter Depth of indentation |
0.35mm
10μm |
0.35mm
10μm |
0.35mm
7μm |
--
-- |
0.35mm
10μ |