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The impact energy: 3mJ
Mass of impact body: 3g
Ball hardness: 1600HV
Ball diameter: 3mm
Material of the ball: tungsten carbide
Impact device diameter: 20mm
Impact device length: 141mm
Weight of the device: 75g
The maximum hardness: 1000HV
Surface average roughness: Ra: 0.4μm
The minimum weight of specimen:
+ Direct measurement: 1.5kg
+ Stable support: 0.5kg
+ To compact coupling: 0.02kg
The minimum thickness of specimen:
+ Coupled: 1mm
+ The minimum depth of hardened layer: ≥0.2mm
Indentation size:
+ Test surface with the hardness of 300HV: Diameter: 0.38mm, Depth: 12μm
+ Test surface with the hardness of 600HV: Diameter: 0.32mm, Depth: 8μm
+ Test surface with the hardness of 800HV: Diameter: 0.35mm, Depth: 7μm
