Hardness reference table
Fav| 布氏硬度(HB) | 洛氏硬度 | 维氏硬度(HV) | 消氏硬度(ES) | ||
|---|---|---|---|---|---|
| (ERA) | (HRB) | (HRC) | |||
| — | 85.6 | — | 68.0 | 940 | 97 |
| — | 85.3 | — | 67.5 | 920 | 96 |
| — | 85.0 | — | 67.0 | 900 | 95 |
| 767 | 84.7 | — | 66.4 | 880 | 93 |
| 757 | 84.4 | — | 65.9 | 860 | 92 |
| 745 | 84.1 | — | 65.3 | 840 | 91 |
| 733 | 83.8 | — | 64.7 | 820 | 90 |
| 722 | 83.4 | — | 64.0 | 800 | 88 |
| 710 | 83.0 | — | 63.3 | 780 | 87 |
| 698 | 82.6 | — | 62.5 | 760 | 86 |
| 684 | 82.2 | — | 61.8 | 740 | — |
| 682 | 82.2 | — | 61.7 | 737 | 84 |
| 670 | 81.8 | — | 61.0 | 720 | 83 |
| 656 | 81.3 | — | 60.1 | 700 | — |
| 653 | 81.2 | — | 60.0 | 697 | 81 |
| 647 | 81.1 | — | 59.7 | 690 | — |
| 638 | 80.8 | — | 59.2 | 680 | 80 |
| 630 | 80.6 | — | 58.8 | 670 | — |
| 627 | 80.5 | — | 58.7 | 667 | — |
| 620 | 80.3 | — | 58.3 | 660 | 79 |
| 601 | 79.8 | — | 57.3 | 640 | 77 |
| 578 | 79.1 | — | 56.0 | 615 | 75 |
| — | 78.8 | — | 55.6 | 607 | — |
| 555 | 78.4 | — | 54.7 | 591 | 73 |
| — | 78.0 | — | 54.0 | 579 | — |
| 534 | 77.8 | — | 53.5 | 569 | 71 |
| 一 | 77.1 | — | 52.5 | 553 | — |
| 514 | 76.9 | — | 52.1 | 547 | 70 |
| — | 76.7 | — | 51.6 | 539 | — |
| — | 76.4 | — | 51.1 | 530 | — |
| 495 | 76.3 | — | 51.0 | 528 | 68 |
| — | 75.9 | — | 50.3 | 516 | — |
| 477 | 75.6 | — | 49.6 | 508 | 66 |
| — | 75.1 | — | 48.8 | 495 | — |
| 461 | 74.9 | — | 48.5 | 491 | 65 |
| — | 74.3 | — | 47.2 | 474 | — |
| 444 | 74.2 | — | 47.1 | 472 | 63 |
| 429 | 73.4 | — | 45.7 | 455 | 61 |
| 415 | 72.3 | — | 44.5 | 440 | 59 |
| 401 | 72.0 | — | 43.1 | 425 | 58 |
| 388 | 71.4 | — | 41.8 | 410 | 56 |
| 375 | 70.6 | — | 40.4 | 396 | 54 |
| 363 | 70.0 | — | 39.1 | 383 | 52 |
| 352 | 69.3 | — | 37.9 | 372 | 51 |
| 341 | 68.7 | — | 36.6 | 360 | 50 |
| 331 | 68.1 | — | 35.5 | 350 | 48 |
| 321 | 67.5 | — | 34.3 | 339 | 47 |
| 311 | 66.9 | — | 33.1 | 328 | 46 |
| 302 | 66.3 | — | 32.1 | 319 | 45 |
| 293 | 65.7 | — | 30.9 | 309 | 43 |
| 285 | 65.3 | — | 29.9 | 301 | 一 |
| 277 | 64.6 | — | 28.8 | 292 | 41 |
| 269 | 64.1 | — | 27.6 | 284 | 40 |
| 262 | 63.6 | — | 26.6 | 276 | 39 |
| 255 | 63.0 | — | 25.4 | 269 | 38 |
| 248 | 62.5 | — | 24.2 | 261 | 37 |
| 241 | 61.8 | 100.0 | 22.8 | 253 | 36 |
| 235 | 61.4 | 99.0 | 21.7 | 247 | 35 |
| 229 | 60.8 | 98.2 | 20.5 | 241 | 34 |
| 223 | — | 97.3 | — | 234 | — |
| 217 | — | 96.4 | — | 228 | 33 |
| 212 | — | 95.5 | — | 222 | — |
| 207 | — | 94.6 | — | 218 | 32 |
| 201 | — | 93.8 | — | 212 | 31 |
| 197 | — | 92.8 | — | 207 | 30 |
| 192 | — | 91.9 | — | 202 | 29 |
| 187 | — | 90.7 | — | 196 | — |
| 183 | — | 90.0 | — | 192 | 28 |
| 179 | — | 89.0 | — | 188 | 27 |
| 174 | — | 87.8 | — | 182 | — |
| 170 | — | 86.8 | — | 178 | 26 |
| 167 | — | 86.0 | — | 175 | — |
| 163 | — | 85.0 | — | 171 | 25 |
| 156 | — | 82.9 | — | 163 | — |
| 149 | — | 80.9 | — | 156 | 23 |
| 143 | — | 78.7 | — | 150 | 22 |
| 137 | — | 76.4 | — | 143 | 21 |
| 131 | — | 74.0 | — | 137 | — |
| 126 | — | 72.0 | — | 132 | 20 |
| 121 | — | 69.8 | — | 127 | 19 |
| 116 | — | 67.6 | — | 122 | 18 |
| 111 | — | 65.7 | — | 117 | 15 |
1. Durezza: è un parametro che misura il grado di durezza di un materiale; esistono diversi metodi di prova, basati su principi diversi, e i valori di durezza rilevati e il loro significato non sono del tutto identici.
2. Questo strumento fornisce un confronto di riferimento tra i valori delle unità di misura di durezza più comuni, quali la durezza Shore, la durezza Rockwell, la durezza Vickers e la durezza Leeb.
3. Durezza Brinell (HB): con una forza di prova compresa tra 1 e 3000 kgf, si preme una sfera in lega dura o in acciaio cementato, di diametro pari a 1, 2,5, 5 o 10 mm, sulla superficie del materiale da testare e si misura l'impronta massima risultante.
4. Durezza Vickers (HV): con una forza di prova compresa tra 1 e 120 kgf, si preme un indentatore a forma di cono quadrangolare in diamante, con un angolo di 136° tra le facce, sulla superficie del materiale da testare e si misura l'impronta risultante.
5. Durezza Rockwell (HR): con un cono di diamante (HRC) o un punzone a sfera in acciaio (tungsteno) temprato (HRB ecc.), si preme sulla superficie del materiale da testare con un precarico di 10 kgf e una forza di prova principale di 60, 100 o 150 kgf, quindi si misura l'impronta.
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