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