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BRINELL HARDNESS CHART, 10mm Ball
Calculate a Brinell hardness number from a measurement
Download Printable Brinell Chart in PDF Format, Sized for 8.5" x 11"

10mm Ball Indenter  10mm Ball Indenter  10mm Ball Indenter  10mm Ball Indenter 
impression diameter  LOAD impression diameter  LOAD impression diameter  LOAD impression diameter  LOAD
mm 3000 1500 1000 500 mm 3000 1500 1000 500 mm 3000 1500 1000 500 mm 3000 1500 1000 500
2.00 945 473 315 158 3.00 415 207 138 69 4.00 229 114 76.3 38.1 5.00 143 71.3 47.5 23.8
2.01 936 468 312 156 3.01 412 206 137 68.6 4.01 228 114 75.9 37.9 5.01 142 71.0 47.3 23.7
2.02 926 463 309 154 3.02 409 205 136 68.2 4.02 226 113 75.5 37.7 5.02 141 70.7 47.1 23.6
2.03 917 459 306 153 3.03 406 203 135 67.7 4.03 225 113 75.1 37.5 5.03 141 70.4 46.9 23.5
2.04 908 454 303 151 3.04 404 202 135 67.3 4.04 224 112 74.7 37.3 5.04 140 70.1 46.7 23.4
2.05 899 450 300 150 3.05 401 200 134 66.8 4.05 223 111 74.3 37.1 5.05 140 69.8 46.5 23.3
2.06 890 445 297 148 3.06 398 199 133 66.4 4.06 222 111 73.9 37.0 5.06 139 69.5 46.3 23.2
2.07 882 441 294 147 3.07 395 198 132 65.9 4.07 221 110 73.5 36.8 5.07 138 69.2 46.1 23.1
2.08 873 437 291 146 3.08 393 196 131 65.5 4.08 219 110 73.2 36.6 5.08 138 68.9 45.9 23.0
2.09 865 432 288 144 3.09 390 195 130 65.0 4.09 218 109 72.8 36.4 5.09 137 68.6 45.7 22.9
2.10 856 428 285 143 3.10 388 194 129 64.6 4.10 217 109 72.4 36.2 5.10 137 68.3 45.5 22.8
2.11 848 424 283 141 3.11 385 193 128 64.2 4.11 216 108 72.0 36.0 5.11 136 68.0 45.3 22.7
2.12 840 420 280 140 3.12 383 191 128 63.8 4.12 215 108 71.7 35.8 5.12 135 67.7 45.1 22.6
2.13 832 416 277 139 3.13 380 190 127 63.3 4.13 214 107 71.3 35.7 5.13 135 67.4 45.0 22.5
2.14 824 412 275 137 3.14 378 189 126 62.9 4.14 213 106 71.0 35.5 5.14 134 67.1 44.8 22.4
2.15 817 408 272 136 3.15 375 188 125 62.5 4.15 212 106 70.6 35.3 5.15 134 66.9 44.6 22.3
2.16 809 405 270 135 3.16 373 186 124 62.1 4.16 211 105 70.2 35.1 5.16 133 66.6 44.4 22.2
2.17 802 401 267 134 3.17 370 185 123 61.7 4.17 210 105 69.9 34.9 5.17 133 66.3 44.2 22.1
2.18 794 397 265 132 3.18 368 184 123 61.3 4.18 209 104 69.5 34.8 5.18 132 66.0 44.0 22.0
2.19 787 393 262 131 3.19 366 183 122 60.9 4.19 208 104 69.2 34.6 5.19 132 65.8 43.8 21.9
2.20 780 390 260 130 3.20 363 182 121 60.5 4.20 207 103 68.8 34.4 5.20 131 65.5 43.7 21.8
2.21 772 386 257 129 3.21 361 180 120 60.1 4.21 205 103 68.5 34.2 5.21 130 65.2 43.5 21.7
2.22 765 383 255 128 3.22 359 179 120 59.8 4.22 204 102 68.2 34.1 5.22 130 64.9 43.3 21.6
2.23 758 379 253 126 3.23 356 178 119 59.4 4.23 203 102 67.8 33.9 5.23 129 64.7 43.1 21.6
2.24 752 376 251 125 3.24 354 177 118 59.0 4.24 202 101 67.5 33.7 5.24 129 64.4 42.9 21.5
2.25 745 372 248 124 3.25 352 176 117 58.6 4.25 201 101 67.1 33.6 5.25 128 64.1 42.8 21.4
2.26 738 369 246 123 3.26 350 175 117 58.3 4.26 200 100 66.8 33.4 5.26 128 63.9 42.6 21.3
2.27 732 366 244 122 3.27 347 174 116 57.9 4.27 199 99.7 66.5 33.2 5.27 127 63.6 42.4 21.2
2.28 725 363 242 121 3.28 345 173 115 57.5 4.28 198 99.2 66.2 33.1 5.28 127 63.3 42.2 21.1
2.29 719 359 240 120 3.29 343 172 114 57.2 4.29 198 98.8 65.8 32.9 5.29 126 63.1 42.1 21.0
2.30 712 356 237 119 3.30 341 170 114 56.8 4.30 197 98.3 65.5 32.8 5.30 126 62.8 41.9 20.9
2.31 706 353 235 118 3.31 339 169 113 56.5 4.31 196 97.8 65.2 32.6 5.31 125 62.6 41.7 20.9
2.32 700 350 233 117 3.32 337 168 112 56.1 4.32 195 97.3 64.9 32.4 5.32 125 62.3 41.5 20.8
2.33 694 347 231 116 3.33 335 167 112 55.8 4.33 194 96.8 64.6 32.3 5.33 124 62.1 41.4 20.7
2.34 688 344 229 115 3.34 333 166 111 55.4 4.34 193 96.4 64.2 32.1 5.34 124 61.8 41.2 20.6
2.35 682 341 227 114 3.35 331 165 110 55.1 4.35 192 95.9 63.9 32.0 5.35 123 61.5 41.0 20.5
2.36 676 338 225 113 3.36 329 164 110 54.8 4.36 191 95.4 63.6 31.8 5.36 123 61.3 40.9 20.4
2.37 670 335 223 112 3.37 326 163 109 54.4 4.37 190 95.0 63.3 31.7 5.37 122 61.1 40.7 20.4
2.38 665 332 222 111 3.38 325 162 108 54.1 4.38 189 94.5 63.0 31.5 5.38 122 60.8 40.5 20.3
2.39 659 330 220 110 3.39 323 161 108 53.8 4.39 188 94.1 62.7 31.4 5.39 121 60.6 40.4 20.2
2.40 653 327 218 109 3.40 321 160 107 53.4 4.40 187 93.6 62.4 31.2 5.40 121 60.3 40.2 20.1
2.41 648 324 216 108 3.41 319 159 106 53.1 4.41 186 93.2 62.1 31.1 5.41 120 60.1 40.0 20.0
2.42 643 321 214 107 3.42 317 158 106 52.8 4.42 185 92.7 61.8 30.9 5.42 120 59.8 39.9 19.9
2.43 637 319 212 106 3.43 315 157 105 52.5 4.43 185 92.3 61.5 30.8 5.43 119 59.6 39.7 19.9
2.44 632 316 211 105 3.44 313 156 104 52.2 4.44 184 91.8 61.2 30.6 5.44 119 59.3 39.6 19.8
2.45 627 313 209 104 3.45 311 156 104 51.8 4.45 183 91.4 60.9 30.5 5.45 118 59.1 39.4 19.7
2.46 621 311 207 104 3.46 309 155 103 51.5 4.46 182 91.0 60.6 30.3 5.46 118 58.9 39.2 19.6
2.47 616 308 205 103 3.47 307 154 102 51.2 4.47 181 90.5 60.4 30.2 5.47 117 58.6 39.1 19.5
2.48 611 306 204 102 3.48 306 153 102 50.9 4.48 180 90.1 60.1 30.0 5.48 117 58.4 38.9 19.5
2.49 606 303 202 101 3.49 304 152 101 50.6 4.49 179 89.7 59.8 29.9 5.49 116 58.2 38.8 19.4
2.50 601 301 200 100 3.50 302 151 101 50.3 4.50 179 89.3 59.5 29.8 5.50 116 57.9 38.6 19.3
2.51 597 298 199 99.4 3.51 300 150 100 50.0 4.51 178 88.9 59.2 29.6 5.51 115 57.7 38.5 19.2
2.52 592 296 197 98.6 3.52 298 149 99.5 49.7 4.52 177 88.4 59.0 29.5 5.52 115 57.5 38.3 19.2
2.53 587 294 196 97.8 3.53 297 148 98.9 49.4 4.53 176 88.0 58.7 29.3 5.53 114 57.2 38.2 19.1
2.54 582 291 194 97.1 3.54 295 147 98.3 49.2 4.54 175 87.6 58.4 29.2 5.54 114 57.0 38.0 19.0
2.55 578 289 193 96.3 3.55 293 147 97.7 48.9 4.55 174 87.2 58.1 29.1 5.55 114 56.8 37.9 18.9
2.56 573 287 191 95.5 3.56 292 146 97.2 48.6 4.56 174 86.8 57.9 28.9 5.56 113 56.6 37.7 18.9
2.57 569 284 190 94.8 3.57 290 145 96.6 48.3 4.57 173 86.4 57.6 28.8 5.57 113 56.3 37.6 18.8
2.58 564 282 188 94.0 3.58 288 144 96.1 48.0 4.58 172 86.0 57.3 28.7 5.58 112 56.1 37.4 18.7
2.59 560 280 187 93.3 3.59 286 143 95.5 47.7 4.59 171 85.6 57.1 28.5 5.59 112 55.9 37.3 18.6
2.60 555 278 185 92.6 3.60 285 142 95.0 47.5 4.60 170 85.2 56.8 28.4 5.60 111 55.7 37.1 18.6
2.61 551 276 184 91.8 3.61 283 142 94.4 47.2 4.61 170 84.8 56.5 28.3 5.61 111 55.5 37.0 18.5
2.62 547 273 182 91.1 3.62 282 141 93.9 46.9 4.62 169 84.4 56.3 28.1 5.62 110 55.2 36.8 18.4
2.63 543 271 181 90.4 3.63 280 140 93.3 46.7 4.63 168 84.0 56.0 28.0 5.63 110 55.0 36.7 18.3
2.64 538 269 179 89.7 3.64 278 139 92.8 46.4 4.64 167 83.6 55.8 27.9 5.64 110 54.8 36.5 18.3
2.65 534 267 178 89.0 3.65 277 138 92.3 46.1 4.65 167 83.3 55.5 27.8 5.65 109 54.6 36.4 18.2
2.66 530 265 177 88.4 3.66 275 138 91.8 45.9 4.66 166 82.9 55.3 27.6 5.66 109 54.4 36.3 18.1
2.67 526 263 175 87.7 3.67 274 137 91.2 45.6 4.67 165 82.5 55.0 27.5 5.67 108 54.2 36.1 18.1
2.68 522 261 174 87.0 3.68 272 136 90.7 45.4 4.68 164 82.1 54.8 27.4 5.68 108 54.0 36.0 18.0
2.69 518 259 173 86.4 3.69 271 135 90.2 45.1 4.69 164 81.8 54.5 27.3 5.69 107 53.7 35.8 17.9
2.70 514 257 171 85.7 3.70 269 135 89.7 44.9 4.70 163 81.4 54.3 27.1 5.70 107 53.5 35.7 17.8
2.71 510 255 170 85.1 3.71 268 134 89.2 44.6 4.71 162 81.0 54.0 27.0 5.71 107 53.3 35.6 17.8
2.72 507 253 169 84.4 3.72 266 133 88.7 44.4 4.72 161 80.7 53.8 26.9 5.72 106 53.1 35.4 17.7
2.73 503 251 168 83.8 3.73 265 132 88.2 44.1 4.73 161 80.3 53.5 26.8 5.73 106 52.9 35.3 17.6
2.74 499 250 166 83.2 3.74 263 132 87.7 43.9 4.74 160 79.9 53.3 26.6 5.74 105 52.7 35.1 17.6
2.75 495 248 165 82.6 3.75 262 131 87.2 43.6 4.75 159 79.6 53.0 26.5 5.75 105 52.5 35.0 17.5
2.76 492 246 164 81.9 3.76 260 130 86.8 43.4 4.76 158 79.2 52.8 26.4 5.76 105 52.3 34.9 17.4
2.77 488 244 163 81.3 3.77 259 129 86.3 43.1 4.77 158 78.9 52.6 26.3 5.77 104 52.1 34.7 17.4
2.78 485 242 162 80.8 3.78 257 129 85.8 42.9 4.78 157 78.5 52.3 26.2 5.78 104 51.9 34.6 17.3
2.79 481 240 160 80.2 3.79 256 128 85.3 42.7 4.79 156 78.2 52.1 26.1 5.79 103 51.7 34.5 17.2
2.80 477 239 159 79.6 3.80 255 127 84.9 42.4 4.80 156 77.8 51.9 25.9 5.80 103 51.5 34.3 17.2
2.81 474 237 158 79.0 3.81 253 127 84.4 42.2 4.81 155 77.5 51.6 25.8 5.81 103 51.3 34.2 17.1
2.82 471 235 157 78.4 3.82 252 126 83.9 42.0 4.82 154 77.1 51.4 25.7 5.82 102 51.1 34.1 17.0
2.83 467 234 156 77.9 3.83 250 125 83.5 41.7 4.83 154 76.8 51.2 25.6 5.83 102 50.9 33.9 17.0
2.84 464 232 155 77.3 3.84 249 125 83.0 41.5 4.84 153 76.4 51.0 25.5 5.84 101 50.7 33.8 16.9
2.85 461 230 154 76.8 3.85 248 124 82.6 41.3 4.85 152 76.1 50.7 25.4 5.85 101 50.5 33.7 16.8
2.86 457 229 152 76.2 3.86 246 123 82.1 41.1 4.86 152 75.8 50.5 25.3 5.86 101 50.3 33.6 16.8
2.87 454 227 151 75.7 3.87 245 123 81.7 40.9 4.87 151 75.4 50.3 25.1 5.87 100 50.2 33.4 16.7
2.88 451 225 150 75.1 3.88 244 122 81.3 40.6 4.88 150 75.1 50.1 25.0 5.88 99.9 50.0 33.3 16.7
2.89 448 224 149 74.6 3.89 242 121 80.8 40.4 4.89 150 74.8 49.8 24.9 5.89 99.5 49.8 33.2 16.6
2.90 444 222 148 74.1 3.90 241 121 80.4 40.2 4.90 149 74.4 49.6 24.8 5.90 99.2 49.6 33.1 16.5
2.91 441 221 147 73.6 3.91 240 120 80.0 40.0 4.91 148 74.1 49.4 24.7 5.91 98.8 49.4 32.9 16.5
2.92 438 219 146 73.0 3.92 239 119 79.5 39.8 4.92 148 73.8 49.2 24.6 5.92 98.4 49.2 32.8 16.4
2.93 435 218 145 72.5 3.93 237 119 79.1 39.6 4.93 147 73.5 49.0 24.5 5.93 98.0 49.0 32.7 16.3
2.94 432 216 144 72.0 3.94 236 118 78.7 39.4 4.94 146 73.2 48.8 24.4 5.94 97.7 48.8 32.6 16.3
2.95 429 215 143 71.5 3.95 235 117 78.3 39.1 4.95 146 72.8 48.6 24.3 5.95 97.3 48.7 32.4 16.2
2.96 426 213 142 71.0 3.96 234 117 77.9 38.9 4.96 145 72.5 48.3 24.2 5.96 96.9 48.5 32.3 16.2
2.97 423 212 141 70.5 3.97 232 116 77.5 38.7 4.97 144 72.2 48.1 24.1 5.97 96.6 48.3 32.2 16.1
2.98 420 210 140 70.1 3.98 231 116 77.1 38.5 4.98 144 71.9 47.9 24.0 5.98 96.2 48.1 32.1 16.0
2.99 417 209 139 69.6 3.99 230 115 76.7 38.3 4.99 143 71.6 47.7 23.9 5.99 95.9 47.9 32.0 16.0

 


Rockwell Hardness Chart (plus a PDF)
(aka Hardness Scale Conversion Chart)

Round Correction Factor
Hardness Minimum Thickness

ASTM Hardness Test Methods
Rockwell Hardness Scales

Brinell Hardness Chart (plus a PDF)

Rockwell Hardness Testing
Brinell Hardness Testing
Microhardness Testing


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