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[China]
Trade Verify
Address: #613A, LinJI Industrial Building ,No.53 of Shun Ren Road ,Lin He Industrial park, ShunYi District ,101300 Beijing ,China
Contact name:WEI
TMTeck Instrument Co., Ltd |
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Verified Suppliers
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D+15 type impact device,D+15 probe of Leeb hardness tester for groove or reentrant surface test
Impact device D+15
Very thin front section and withdrawn measuringspool.
Used for measuring grooves and recessed surfaces.
Impact device Applicable materials: steel and cast steel,
metallurgical tool steel, forged steel, gray cast iron, ductile
cast iron, cast aluminum alloy, pure copper,
Copper-zinc alloy (brass), copper-tin alloy (bronze)
| 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 |
