... Rockwell Scales Testing ForceHR15N, HR30N, HR45N, HR15T, HR30T, HR45T 15Kg (147.1N), 30Kg (294.2N), 441.3N(45Kg)Vickers Scales Testing ForceHV5 ... , HV10, HV20, HV30 5Kg (49.03N),10Kg (98.07N),20Kg (196.1N),30Kg (294.2N)Indication of Hardness ValueSuperficial RockwellDial(Vickers): (Measuring ...