Hardness to Tensile Conversion
| Rockwell | Rockwell Superficial | Brinell | Vickers | Shore | Approx Tensile Strength (psi) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | 15-N | 30-N | 45-N | 30-T | 3000 kg | 500 kg | 136 | Sciero-scope | |
| 60kg Brake | 100kg 1/16" Ball | 150kg Brake | 100kg Brake | 100kg 1/8" Ball | 60kg 1/16" Ball | 15kg Brake | 30kg Brake | 45kg Brake | 30kg 1/16" Ball | 10mm Ball Steel | Diamond Pyramid | |||
| 68.4 | 109 | 36 | 52.3 | - | - | 78.3 | 55.9 | 38.4 | - | 336 | - | 354 | 49 | 165,000 |
| 67.9 | 109 | 35 | 51.5 | - | - | 77.7 | 55.0 | 37.2 | - | 327 | - | 345 | 48 | 160,000 |
| 67.4 | 108 | 34 | 5038 | - | - | 77.2 | 54.2 | 36.1 | - | 319 | - | 336 | 47 | 156,000 |
| 66.8 | 108 | 33 | 50.0 | - | - | 76.6 | 53.3 | 34.9 | - | 311 | - | 327 | 46 | 152,000 |