| 布氏硬度 HB |
洛氏硬度 | 维氏 硬度 HV |
布氏硬度 HB |
洛氏硬度 | 维氏硬度 HV |
||
| HRA | HRC | HRA | HRC | ||||
| 86.6 | 70.0 | 1037 | 78.5 | 55.0 | 599 | ||
| 86.3 | 69.5 | 1017 | 78.2 | 54.5 | 589 | ||
| 86.1 | 69.0 | 997 | 77.9 | 54.0 | 579 | ||
| 85.8 | 68.5 | 978 | 77.7 | 53.5 | 570 | ||
| 85.5 | 68.0 | 959 | 77.4 | 53.0 | 561 | ||
| 85.2 | 67.5 | 941 | 77.1 | 52.5 | 551 | ||
| 85.0 | 67.0 | 923 | 76.9 | 52.0 | 543 | ||
| 84.7 | 66.5 | 906 | 76.6 | 51.5 | 534 | ||
| 84.4 | 66.0 | 889 | 501 | 76.3 | 51.0 | 525 | |
| 84.1 | 65.5 | 872 | 494 | 76.1 | 50.5 | 517 | |
| 83.9 | 65.0 | 856 | 488 | 75.8 | 50.0 | 509 | |
| 83.6 | 64.5 | 840 | 481 | 75.5 | 49.5 | 501 | |
| 83.3 | 64.0 | 825 | 474 | 75.3 | 49.0 | 493 | |
| 83.1 | 63.5 | 810 | 468 | 75.0 | 48.5 | 485 | |
| 82.8 | 63.0 | 795 | 461 | 74.7 | 48.0 | 478 | |
| 82.5 | 62.5 | 780 | 455 | 74.5 | 47.5 | 470 | |
| 82.2 | 62.0 | 766 | 449 | 74.2 | 47.0 | 463 | |
| 82.0 | 61.5 | 752 | 442 | 73.9 | 46.5 | 456 | |
| 81.7 | 61.0 | 739 | 436 | 73.7 | 46.0 | 449 | |
| 81.4 | 60.5 | 726 | 430 | 73.4 | 45.5 | 443 | |
| 81.2 | 60.0 | 713 | 424 | 73.2 | 45.0 | 436 | |
| 80.9 | 59.5 | 700 | 418 | 72.9 | 44.5 | 429 | |
| 80.6 | 59.0 | 688 | 413 | 72.6 | 44.0 | 423 | |
| 80.3 | 58.5 | 676 | 407 | 72.4 | 43.5 | 417 | |
| 80.1 | 58.0 | 664 | 401 | 72.1 | 43.0 | 411 | |
| 79.8 | 57.5 | 653 | 396 | 71.8 | 42.5 | 405 | |
| 79.5 | 57.0 | 642 | 391 | 71.6 | 42.0 | 399 | |
| 79.3 | 56.5 | 631 | 385 | 71.3 | 41.5 | 393 | |
| 79.0 | 56.0 | 620 | 380 | 71.1 | 41.0 | 388 | |
| 78.7 | 55.5 | 609 | 375 | 70.8 | 40.5 | 382 | |
Ferrous metal materials hardness value conversion table
| 布氏硬度 HB |
洛氏硬度 | 维氏硬度 HV |
布氏硬度 HB |
洛氏硬度 | 维氏硬度 HV |
||
| HRA | HRC | HRA | HRC | ||||
| 370 | 70.5 | 40.0 | 377 | 269 | 28.0 | 274 | |
| 365 | 70.3 | 39.5 | 372 | 266 | 27.5 | 271 | |
| 360 | 70.0 | 39.0 | 367 | 263 | 27.0 | 268 | |
| 355 | 38.5 | 362 | 260 | 26.5 | 264 | ||
| 350 | 38.0 | 351 | 257 | 26.0 | 261 | ||
| 345 | 37.5 | 352 | 254 | 25.5 | 258 | ||
| 341 | 37.0 | 347 | 251 | 25.0 | 255 | ||
| 336 | 36.5 | 342 | 248 | 24.5 | 252 | ||
| 332 | 36.0 | 338 | 245 | 24.0 | 249 | ||
| 327 | 35.5 | 333 | 242 | 23.5 | 246 | ||
| 323 | 35.0 | 329 | 240 | 23.0 | 243 | ||
| 318 | 34.5 | 324 | 237 | 22.5 | 240 | ||
| 314 | 34.0 | 320 | 234 | 22.0 | 237 | ||
| 310 | 33.5 | 316 | 232 | 21.5 | 234 | ||
| 306 | 33.0 | 312 | 229 | 21.0 | 231 | ||
| 302 | 32.5 | 308 | 227 | 20.5 | 229 | ||
| 298 | 32.0 | 304 | 225 | 20.0 | 226 | ||
| 294 | 31.5 | 300 | 222 | 19.5 | 223 | ||
| 291 | 31.0 | 296 | 220 | 19.0 | 221 | ||
| 287 | 30.5 | 292 | 218 | 18.5 | 218 | ||
| 283 | 30.0 | 289 | 216 | 18.0 | 216 | ||
| 280 | 29.5 | 285 | 214 | 17.5 | 214 | ||
| 276 | 29.0 | 281 | 211 | 17.0 | 211 | ||
| 273 | 28.5 | 278 | |||||
Note:
1. Brinell hardness: It is mainly used to measure the hardness of castings, forgings, non-ferrous metal parts, hot-rolled billets and annealed parts. The measurement range is ≥HB450.
2. Rockwell hardness: HRA is mainly used for high-hardness specimens to measure the surface hardness of materials and surfaces with hardness higher than HRC67, such as cemented carbide, nitrided steel, etc. The measurement range is HRA>70. HRC is mainly used to measure the hardness of steel parts (such as carbon steel, tool steel, alloy steel, etc.) after quenching or tempering. The measurement range is HRC20~67.
3. Vickers hardness: used to measure the hardness of thin parts and steel plate parts, and can also be used to measure the hardness of surface hardened parts such as carburizing, cyaniding, and nitriding.
Post time: Apr-07-2024