Hardness Converter Table 1
APPROXIMATIVE CONVERSION BETWEEN THE NUMBERS OF HARDNESS ROCKWELL, SUPERFICIAL ROCKWELL, VICKERS AND BRINELL.
C | A | D | 15N | 30N | 45N | Vickers | Brinell | G | |
Diamond cone | Diamond cone | Diamond cone | Diamond cone | Diamond cone | Diamond cone | Diamond pyramid | Ball 10mm | Ball 1/16" | Max. Stress |
150 kg | 60 kg | 100 kg | 15 kg | 30 kg | 45 kg | 10 kg | 3000 kg | 150 kg | kg./mm2 |
80 | 92.0 | 86.5 | 96.5 | 92.0 | 87.0 | 1865 | - | - | |
79 | 91.5 | 85.5 | - | 91.5 | 86.5 | 1787 | - | - | |
78 | 91.0 | 84.5 | 96.0 | 91.0 | 85.5 | 1710 | - | - | |
77 | 90.5 | 84.0 | - | 90.5 | 84.5 | 1633 | - | - | |
76 | 90.0 | 83.0 | 95.5 | 90.0 | 83.5 | 1556 | - | - | |
75 | 89.5 | 82.5 | - | 89.0 | 82.5 | 1478 | - | - |