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Product Description
Technical Specifications
Error and repeatability of displayed value see Table 1.
Table 1
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 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: | 1.6 μm | 1.6 μm | 0.4 μm | 6.3 μm | 1.6 μm | ||||||
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 8 μm | 0.90mm 41μm | 0.54mm 17μm |
Hardness 800HV | Indentation diameter Depth of indentation | 0.35mm 10μm | 0.35mm 10μm | 0.35mm 7 μm | -- -- | 0.35mm 10μm |
Available type of impact device | DC: Test hole or hollow cylindrical; 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 steel | E: Test super high hardness material | |
