Hardness Conversion Chart

Brinell Hardness Rockwell Hardness Tensile Strength Brinell Hardness Rockwell Hardness Tensile Strength
Tungsten Carbide Ball 3000 KG A Scale 60KG B Scale 100KG C Scale 150KG (Approx.) Tungsten Carbide Ball 3000 KG A Scale 60KG B Scale 100KG C Scale 150KG (Approx.)
- 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
656 81.3 - 60.1 - 223 - 97.3 20 -
653 81.2 - 60 - 217 - 96.4 18 105,000
647 81.1 - 59.7 - 212 - 95.5 17 102,000
638 80.8 - 59.2 329,000 207 - 94.6 16 100,000
630 80.6 - 58.8 324,000 201 - 93.8 15 98,000
627 80.5 - 58.7 323,000 197 - 92.8 - 95,000
601 79.8 - 57.3 309,000 192 - 91.9 - 93,000
578 79.1 - 56 297,000 187 - 90.7 - 90,000
555 78.4 - 54.7 285,000 183 - 90 - 89,000
534 77.8 - 53.5 274,000 179 - 89 - 87,000
514 76.9 - 52.1 263,000 174 - 87.8 - 85,000
495 76.3 - 51 253,000 170 - 86.8 - 83,000
477 75.6 - 49.6 243,000 167 - 86 - 81,000
461 74.9 - 48.5 235,000 163 - 85 - 79,000
444 74.2 - 47.1 225,000 156 - 82.9 - 76,000
429 73.4 - 45.7 217,000 149 - 80.8