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Model | HUH-6M | |||||||
Standard | DIN50159-1-2008; ASTM-A1038-2005; JB/T 9377-2010; JJG-654-2013; GBT34205-2017 | |||||||
Range | HV50-1599,HRC20-76,HB76-618,HRB41-100,HRB41-100,HRA61-85.6,Mpa255-2180 | |||||||
Test Error | HRC:±2HRC; HB:±3%HB; HV:±3%HV | |||||||
Maximum allowable relative error | Hardness of standard test block | Maximum allowable relative error of hardness tester% | ||||||
HV10 | HV5 | HV2 | HV1 | HV0.8 | HV0.3 | HV0.1 | ||
<250HV | 4 | 4 | 4 | 4 | 4 | 5 | 5 | |
250HV-500HV | 4 | 4 | 4 | 4 | 4 | 6 | 6 | |
>500HV-800HV | 4 | 4 | 5 | 5 | 5 | 7 | 7 | |
>800HV | 4 | 4 | 6 | 6 | 6 | 8 | 8 | |
Probe test force | 2kgf(optional0.5kgf,1kgf,5kgf,10kgf) | |||||||
Working temperature | -20℃~50℃ | |||||||
| <=85% |
Probe | 0.5kgfmanual probe | 1kgfmanual probe | 2kgf manual probe | 5kgf manual probe | 10kgf manual probe |
Accessory | Optional accessory | Optional accessory | Standard accessory | Optional accessory | Optional accessory |
Test force | 5N | 10N | 20N | 50N | 98N |
Diameter | 22mm | 22mm | 22mm | 22mm | 22mm |
Length | 150mm | 150mm | 150mm | 150mm | 150mm |
Resonant rod diameter | 2.4mm | 2.4mm | 2.4mm | 2.4mm | 2.4mm |
Maximum roughness of test surface | Ra<3.2um | Ra<3.2um | Ra<5um | Ra<10um | Ra<15um |
Minimum workpiece weight | 0.3kg | 0.3kg | 0.3kg | 0.3kg | 0.3kg |
Minimum workpiece thickness | 2mm | 2mm | 2mm | 2mm | 2mm |