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The impact energy: 90mJ
Mass of impact body: 20g
Ball hardness: 1600HV
Ball diameter: 5mm
Material of the ball: tungsten carbide
Impact device diameter: 30mm
Impact device length: 254mm
Weight of the device: 250g
The maximum hardness: 650 HB
Surface average roughness: Ra: 6.3μm
The minimum weight of specimen:
+ Direct measurement: 15kg
+ Stable support: 5kg
+ To compact coupling: 0.5kg
The minimum thickness of specimen:
+ Coupled: 10mm
Indentation size:
+ Test surface with the hardness of 300HV: Diameter: 1.03mm, Depth: 53μm
+ Test surface with the hardness of 600HV: Diameter: 0.9mm, Depth: 41μm
