Hardness Test Blocks
Series 640
| Description | Range of Hardness | Dimension | Weight | Code No. |
| Brinell standardized Block |
200 ± 50 HBS 100 ± 25 HBS |
100 X 80 X 16mm | 1kg | 640-80-0 |
| Rockwell standardized Block |
80 - 88 HRA 85 - 95 HRB 20 - 30 HRC 35 - 55 HRC 60 - 70 HRC |
60 X 40 X 10mm | 0.19kg | 640-81-0 |
| Leeb standardized Block | 790 ± 40 HLD | Ø90 X 55mm | 2.7kg | 640-82-0 |
Malaysia
