硬度種類

硬度規格

洛氏

ROCKWELL

HRC-10 , 20 , 25 , 30 , 35 , 40 , 45 , 50 , 55 , 57 , 60 , 62 , 64 , 67 , 70

HRB-30 , 40 , 50 , 60 , 70 , 80 , 90 , 100

HRA-55,60,65,70,75,80,85

HR-30N 35,40,45,50,55,60,65,70,75,80

HR-15N 70,75,80,85,90,95

HR-30T 30,35,40,50,55,60,70,75,80

HR-15T 70,75,80,85,90

微克氏

VICKERS

HV-100,150,200,300,400,500,600

    700,800,900,1000 (64m/m)

HMV-40,100,200,300,400,500,600

     700,800,900 (25m/m)