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| | | | | | | | | | | | | | | | | Hardness Comparison Table | | | | | | | | | | | | | | | | | | | | | | | | Ball | Brinell hardness | Vickers | Rockwell hardness | Shore | Tensile | | | | inden- | | | hardness | | | | hardness | strength | | | | tation | | | | | | | | | | | | Standard | Carbide | | Scale A | Scale B | Scale C | | | | | | | ball | ball | | 60kg | 100kg | 150kg | | | | | | mm | HB | HV | HRA | HRB | HRC | Sh | N/mm= | | | | 3,70 | 269 | 269 | 284 | 64,1 | (104,0| | 27,6 | 40 | 892 | | | | 3,75 | 262 | 262 | 276 | 63,6 | (103,0) | 26,6 | 39 | 873 | | | | 3,80 | 255 | 255 | 269 | 63,0 | (102,0) | 25,4 | 38 | 843 | | | | 3,85 | 248 | 248 | 261 | 62,5 | (101,0) | 24,2 | 37 | 824 | | | | 3,90 | 241 | 241 | 253 | 61,8 | 100,0 | 22,8 | 36 | 804 | | | | 3,95 | 235 | 235 | 247 | 61,4 | 99,0 | 21,7 | 35 | 785 | | | | 4,00 | 229 | 229 | 241 | 60,8 | 98 2 | 20,5 | 34 | 765 | | | | 4,05 | 223 | 223 | 234 | | 97,3 | (18,8) | | | | | | 4,10 | 217 | 217 | 228 | | 96,4 | (17,5) | 33 | 726 | | | | 4,15 | 212 | 212 | 222 | | 95,5 | (16.0) | | 706 | | | | 4,20 | 207 | 207 | 218 | | 94,6 | (15,2) | 32 | 686 | | | | 4,25 | 201 | 201 | 212 | | 93,8 | (13,8) | 31 | 677 | | | | 4,30 | 197 | 197 | 207 | | 92,8 | (12,7) | 30 | 657 | | | | 4,35 | 192 | 192 | 202 | | 91,9 | (11.5) | 29 | 637 | | | | 4,40 | 187 | 187 | 196 | | 90,7 | (10,0) | | 618 | | | | 4,45 | 183 | 183 | 192 | | 9G.0 | (9,0) | 28 | 618 | | | | 4,50 | 179 | 179 | 188 | | | (8,0) | 27 | 593 | | | | 4,55 | 174 | 174 | 182 | | 87,8 | (6,4) | | 588 | | | | 4,60 | 170 | 170 | 178 | | 86,8 | (5,4) | 26 | 569 | | | | 4,65 | 167 | 167 | 175 | | 86.0 | (4,4) | | 559 | | | | 4,70 | 163 | 163 | 171 | | 85,0 | 3,3 | 25 | 549 | | | | 4,80 | 156 | 156 | 163 | | 82,9 | (0,9) | | 520 | | | | 4,90 | 149 | 149 | 156 | | 80,8 | 23 | 500 | | | | 5,00 | 143 | 143 | 150 | | 78,7 | | 22 | 490 | | | | 5,10 | 137 | 137 | 143 | | 76,4 | | 21 | 461 | | | | 5,20 | 131 | 131 | 137 | | 74,0 | | | 451 | | | | 5,30 | 126 | 126 | 132 | | 72,0 | | 20 | 431 | | | | 5,40 | 121 | 121 | 127 | | 69,8 | | 19 | 412 | | | | 5,50 | 116 | 116 | 122 | | 67,6 | | 18 | 402 | | | | 5,60 | 111 | 111 | 117 | | 65,7 | | 15 | 382 | | | | | | | | | | | | | | | | | | | | | | | | The measures in parentheses are not commonly used, Ihey are only indicated as reference values, | | | | | | | | | | | | | | | | |
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