Hardness unit conversion table, Brinell Rockwell Vickers hardness conversion formula
Hardness Conversion Table: Brinell Hardness and Rockwell Hardness | |||||||||
Brinell hardness | Rockwell Hardness | Tensile strength | Brinell hardness | Rockwell Hardness | Tensile strength | ||||
Carbide ball 3000kg | Ruler A | Ruler B | RulerC | (Approx. Pounds per square inch) | Carbide ball 3000kg | RulerA | RulerB | RulerC | (Approx. Pounds per square inch) |
60kg | 100kg | 150kg | 60kg | 100kg | 150kg | ||||
- | 85.6 | - | 68 | - | 331 | 68.1 | - | 35.5 | 166,000 |
- | 85.3 | - | 67.5 | - | 321 | 67.5 | - | 34.3 | 160,000 |
- | 85 | - | 67 | - | 311 | 66.9 | - | 33.1 | 155,000 |
767 | 84.7 | - | 66.4 | - | 302 | 66.3 | - | 32.1 | 150,000 |
757 | 84.4 | - | 65.9 | - | 293 | 65.7 | - | 30.9 | 145,000 |
745 | 84.1 | - | 65.3 | - | 285 | 65.3 | - | 29.9 | 141,000 |
733 | 83.8 | - | 64.7 | - | 277 | 64.6 | - | 28.8 | 137,000 |
722 | 83.4 | - | 64 | - | 269 | 64.1 | - | 27.6 | 133,000 |
712 | - | - | - | - | 262 | 63.6 | - | 26.6 | 129,000 |
710 | 83 | - | 63.3 | - | 255 | 63 | - | 25.4 | 126,000 |
698 | 82.6 | - | 62.5 | - | 248 | 62.5 | - | 24.2 | 122,000 |
684 | 82.2 | - | 61.8 | - | 241 | 61.8 | 100 | 22.8 | 118,000 |
682 | 82.2 | - | 61.7 | - | 235 | 61.4 | 99 | 21.7 | 115,000 |
670 | 81.8 | - | 61 | - | 229 | 60.8 | 98.2 | 20.5 | 111,000 |
