| Shum HB | Shum | Shum Shum HV | Shum HB | Shum | Shum HV | ||
| Hrra | Hrc | Hrra | Hrc | ||||
| 86.6 | 70,0 | 1037 yil | 78.5 | 55.0 | 599 | ||
| 86.3 | 69.5 | 1017 yil | 78.2 | 54.5 | 589 yil | ||
| 86.1 | 69.0 | 997 yil | 77.9 | 54.0 | 579 | ||
| 85.8 | 68.5 | 978 yil | 77.7 | 53,5 | 570 | ||
| 85.5 | 68.0 | 959 yil | 77.4 | 53.0 | 561 yil | ||
| 85.2 | 67.5 | 941 yil | 77.1 | 52.5 | 551 yil | ||
| 85.0 | 67.0 | 923 yilda | 76.9 | 52.0 | 543 yil | ||
| 84,7 | 66.5 | 906 | 76.6 | 51.5 | 534 | ||
| 84.4 | 66.0 | 889 | 501 yil | 76.3 | 51.0 | 525 | |
| 84.1 | 65.5 | 872 yil | 494 yilda | 76.1 | 50,5 | 517 yil | |
| 83.9 | 65.0 | 856 | 488 | 75.8 | 50,0 | 509 | |
| 83.6 | 64.5 | 840 | 481 yilda | 75.5 | 49.5 | 501 yil | |
| 83.3 | 64.0 | 825 | 474 yil | 75.3 | 49.0 | Kinut | |
| 83.1 | 63.5 | 810 | 468 | 75.0 | 48.5 | 485 yil | |
| 82.8 | 63.0 | 795 | 461 yilda | 74.7 | 48.0 | 478 | |
| 82.5 | 62.5 | 780 | 455 | 74.5 | 47.5 | 470 | |
| 82.2 | 62.0 | 766 | 449 yil | 74.2 | 47.0 | 463 yilda | |
| 82.0 | 61.5 | 752 | 442 yil | 73.9 | 46.5 | 456 yil | |
| 81.7 | 61.0 | 739 | 436 | 73.7 | 46.0 | 449 yil | |
| 81.4 | 60.5 | 726 | 430 | 73.4 | 45.5 | 443 | |
| 81.2 | 60,0 | 713 | 424 yilda | 73.2 | 45.0 | 436 | |
| 80.9 | 59.5 | 700 | 418 yil | 72.9 | 44.5 | 429 | |
| 80,6 | 59.0 | 688 yil | 413 yilda | 72.6 | 44.0 | 423 yilda | |
| 80,3 | 58.5 | 676 yil | 407 | 72.4 | 43.5 | 417 yil | |
| 80.1 | 58.0 | 664 yil | 401 | 72.1 | 43.0 | 411 | |
| 79.8 | 57.5 | 653 yil | 396 | 71.8 | 42.5 | 405 | |
| 79.5 | 57.0 | 642 yil | 391 | 71.6 | 42.0 | 399 | |
| 79.3 | 56.5 | 631 yil | 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 | |
Qora metall materiallari Qattiqlik Qiyinlashtirish jadvali
| Shum HB | Shum | Shum HV | Shum HB | Shum | Shum HV | ||
| Hrra | Hrc | Hrra | 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 | |||||
Eslatma:
1 O'lchov diapazoni - ≥450.
2 HRC asosan po'lat qismlarining qattiqligini o'lchash uchun ishlatiladi (masalan, uglerod po'lat, asboblar po'lat, po'lat po'lat, po'lat po'lat va boshqalar) qoniqish yoki hayajonlangandan keyin. O'lchov diapazoni - HRC20 ~ 67.
3
Post vaqti: Apr - 07-2024