Ungefärligt omvandlingsvärde för stål Rockwell C hårdhet*1
| (HRC) Rockwell C-skalan hårdhet | 
 (HV) Vickers hårdhet | Brinell hårdhet (HB) 10 mm kula belastning 3000 kgf | Rockwell hårdhet*3 | Rockwell ytlig hårdhet; diamantkonisk indragning | (HS) | Draghållfasthet styrka*2 (ungefärligt värde) MPa | (HRC)*3 Rockwell C skala hårdhet | |||||
| Shore hårdhet | ||||||||||||
| Standardboll | Volfram karbidkula | (SPEL) A vågbelastning 60 kgf diamantkonisk indenter | (HRB) B skalbelastning 100 kgf diameter 1,6 mm (1/16in) boll | (HRD) D vågbelastning 100 kgf diamantkonisk indenter | 15-N skala belastning 15 kgf | 30-N skala belastning 30 kgf | 45-N skala belastning 45 kgf | |||||
| 68 | 940 | – | – | 85.6 | – | 76.9 | 93.2 | 84.4 | 75.4 | 97 | – | 68 | 
| 67 | 900 | – | – | 85.0 | – | 76.1 | 92.9 | 83.6 | 74.2 | 95 | – | 67 | 
| 66 | 865 | – | – | 84.5 | – | 75.4 | 92.5 | 82.8 | 73.3 | 92 | – | 66 | 
| 65 | 832 | – | (739) | 83.9 | – | 74.5 | 92.2 | 81.9 | 72.0 | 91 | – | 65 | 
| 64 | 800 | – | (722) | 83.4 | – | 73.8 | 91.8 | 81.1 | 71.0 | 88 | – | 64 | 
| 63 | 772 | – | (705) | 82.8 | – | 73.0 | 91.4 | 80.1 | 69.9 | 87 | – | 63 | 
| 62 | 746 | – | (688) | 82.3 | – | 72.2 | 91.1 | 79.3 | 68.8 | 85 | – | 62 | 
| 61 | 720 | – | (670) | 81.8 | – | 71.5 | 90.7 | 78.4 | 67.7 | 83 | – | 61 | 
| 60 | 697 | – | (654) | 81.2 | – | 70.7 | 90.2 | 77.5 | 66.6 | 81 | – | 60 | 
| 59 | 674 | – | (634) | 80.7 | – | 69.9 | 89.8 | 76.6 | 65.5 | 80 | – | 59 | 
| 58 | 653 | 615 | 80.1 | 69.2 | 89.3 | 75.7 | 64.3 | 78 | 58 | |||
| 57 | 633 | 595 | 79.6 | 68.5 | 88.9 | 74.8 | 63.2 | 76 | 57 | |||
| 56 | 613 | 577 | 79.0 | 67.7 | 88.3 | 73.9 | 62.0 | 75 | 56 | |||
| 55 | 595 | 560 | 78.5 | 66.9 | 87.9 | 73.0 | 60.9 | 74 | 2075 | 55 | ||
| 54 | 577 | 543 | 78.0 | 66.1 | 87.4 | 72.0 | 59.8 | 72 | 2015 | 54 | ||
| 53 | 560 | – | 525 | 77.4 | – | 65.4 | 86.9 | 71.2 | 58.6 | 71 | 1950 | 53 | 
| 52 | 544 | (500) | 512 | 76.8 | – | 64.6 | 86.4 | 70.2 | 57.4 | 69 | 1880 | 52 | 
| 51 | 528 | (487) | 496 | 76.3 | – | 63.8 | 85.9 | 69.4 | 56.1 | 68 | 1820 | 51 | 
| 50 | 513 | (475) | 481 | 75.9 | – | 63.1 | 85.5 | 68.5 | 55.0 | 67 | 1760 | 50 | 
| 49 | 498 | (464) | 469 | 75.2 | – | 62.1 | 85.0 | 67.6 | 53.8 | 66 | 1695 | 49 | 
| 48 | 484 | 451 | 455 | 74.7 | – | 61.4 | 84.5 | 66.7 | 52.5 | 64 | 1635 | 48 | 
| 47 | 471 | 442 | 443 | 74.1 | – | 60.8 | 83.9 | 65.8 | 51.4 | 63 | 1580 | 47 | 
| 46 | 458 | 432 | 432 | 73.6 | – | 60.0 | 83.5 | 64.8 | 50.3 | 62 | 1530 | 46 | 
| 45 | 446 | 421 | 421 | 73.1 | – | 59.2 | 83.0 | 64.0 | 49.0 | 60 | 1480 | 45 | 
| 44 | 434 | 409 | 409 | 72.5 | – | 58.5 | 82.5 | 63.1 | 47.8 | 58 | 1435 | 44 | 
| 43 | 423 | 400 | 400 | 72.0 | – | 57.7 | 82.0 | 62.2 | 46.7 | 57 | 1385 | 43 | 
| 42 | 412 | 390 | 390 | 71.5 | – | 56.9 | 81.5 | 61.3 | 45.5 | 56 | 1340 | 42 | 
| 41 | 402 | 381 | 381 | 70.9 | – | 56.2 | 80.9 | 60.4 | 44.3 | 55 | 1295 | 41 | 
| 40 | 392 | 371 | 371 | 70.4 | – | 55.4 | 80.4 | 59.5 | 43.1 | 54 | 1250 | 40 | 
| 39 | 382 | 362 | 362 | 69.9 | – | 54.6 | 79.9 | 58.6 | 41.9 | 52 | 1215 | 39 | 
| 38 | 372 | 353 | 353 | 69.4 | – | 53.8 | 79.4 | 57.7 | 40.8 | 51 | 1180 | 38 | 
| 37 | 363 | 344 | 344 | 68.9 | – | 53.1 | 78.8 | 56.8 | 39.6 | 50 | 1160 | 37 | 
| 36 | 354 | 336 | 336 | 68.4 | (109.0) | 52.3 | 78.3 | 55.9 | 38.4 | 49 | 1115 | 36 | 
| 35 | 345 | 327 | 327 | 67.9 | (108,5) | 51.5 | 77.7 | 55.0 | 37.2 | 48 | 1080 | 35 | 
| 34 | 336 | 319 | 319 | 67.4 | (108.0) | 50.8 | 77.2 | 54.2 | 36.1 | 47 | 1055 | 34 | 
| 33 | 327 | 311 | 311 | 66.8 | (107,5) | 50.0 | 76.6 | 53.3 | 34.9 | 46 | 1025 | 33 | 
| 32 | 318 | 301 | 301 | 66.3 | (107.0) | 49.2 | 76.1 | 52.1 | 33.7 | 44 | 1000 | 32 | 
| 31 | 310 | 294 | 294 | 65.8 | (106.0) | 48.4 | 75.6 | 51.3 | 32.5 | 43 | 980 | 31 | 
| 30 | 302 | 286 | 286 | 65.3 | (105,5) | 47.7 | 75.0 | 50.4 | 31.3 | 42 | 950 | 30 | 
| 29 | 294 | 279 | 279 | 64.7 | (104,5) | 47.0 | 74.5 | 49.5 | 30.1 | 41 | 930 | 29 | 
| 28 | 286 | 271 | 271 | 64.3 | (104.0) | 46.1 | 73.9 | 48.6 | 28.9 | 41 | 910 | 28 | 
| 27 | 279 | 264 | 264 | 63.8 | (103.0) | 45.2 | 73.3 | 47.7 | 27.8 | 40 | 880 | 27 | 
| 26 | 272 | 258 | 258 | 63.3 | (102,5) | 44.6 | 72.8 | 46.8 | 26.7 | 38 | 860 | 26 | 
| 25 | 266 | 253 | 253 | 62.8 | (101,5) | 43.8 | 72.2 | 45.9 | 25.5 | 38 | 840 | 25 | 
| 24 | 260 | 247 | 247 | 62.4 | (101.0) | 43.1 | 71.6 | 45.0 | 24.3 | 37 | 825 | 24 | 
| 23 | 254 | 243 | 243 | 62.0 | 100.0 | 42.1 | 71.0 | 44.0 | 23.1 | 36 | 805 | 23 | 
| 22 | 248 | 237 | 237 | 61.5 | 99.0 | 41.6 | 70.5 | 43.2 | 22.0 | 35 | 785 | 22 | 
| 21 | 243 | 231 | 231 | 61.0 | 98.5 | 40.9 | 69.9 | 42.3 | 20.7 | 35 | 770 | 21 | 
| 20 | 238 | 226 | 226 | 60.5 | 97.8 | 40.1 | 69.4 | 41.5 | 19.6 | 34 | 760 | 20 | 
| (18) | 230 | 219 | 219 | – | 96.7 | – | – | – | – | 33 | 730 | (18) | 
| (16) | 222 | 212 | 212 | – | 95.5 | – | – | – | – | 32 | 705 | (16) | 
| (14) | 213 | 203 | 203 | – | 93.9 | – | – | – | – | 31 | 675 | (14) | 
| (12) | 204 | 194 | 194 | – | 92.3 | – | – | – | – | 29 | 650 | (12) | 
| (10) | 196 | 187 | 187 | – | 90.7 | – | – | – | – | 28 | 620 | (10) | 
| (8) | 188 | 179 | 179 | – | 89.5 | – | – | – | – | 27 | 600 | (8) | 
| (6) | 180 | 171 | 171 | – | 87.1 | – | – | – | – | 26 | 580 | (6) | 
| (4) | 173 | 165 | 165 | – | 85.5 | – | – | – | – | 25 | 550 | (4) | 
| (2) | 166 | 158 | 158 | – | 83.5 | – | – | – | – | 24 | 530 | (2) | 
| (0) | 160 | 152 | 152 | – | 81.7 | – | – | – | – | 24 | 515 | (0) | 
* 1 Fetstilta siffror är enligt ASTM E 140 Tabell 1 (arrangerade gemensamt av SAE, ASM och ASTM). *2 1MPa = 1N/mm2
*3 Värdet inom parentes i tabellen är för intervall som sällan används och indikeras som referens.
 
								 Svenska
 Svenska		 English
 English         简体中文
 简体中文         Русский
 Русский         Deutsch
 Deutsch         日本語
 日本語         Français
 Français         Español
 Español         Nederlands
 Nederlands         Italiano
 Italiano         한국어
 한국어         Latviešu valoda
 Latviešu valoda         Čeština
 Čeština         Suomi
 Suomi         Lietuvių kalba
 Lietuvių kalba         Dansk
 Dansk         Ελληνικά
 Ελληνικά         Magyar
 Magyar         Română
 Română         Slovenčina
 Slovenčina         Eesti
 Eesti         Polski
 Polski         Slovenščina
 Slovenščina         Türkçe
 Türkçe         Português
 Português         Български
 Български         Українська
 Українська         Bahasa Indonesia
 Bahasa Indonesia         Norsk nynorsk
 Norsk nynorsk         Íslenska
 Íslenska         Basa Jawa
 Basa Jawa         Қазақ тілі
 Қазақ тілі         ភាសាខ្មែរ
 ភាសាខ្មែរ         كوردی
 كوردی         Кыргызча
 Кыргызча         ພາສາລາວ
 ພາສາລາວ         Македонски јазик
 Македонски јазик         Bahasa Melayu
 Bahasa Melayu         മലയാളം
 മലയാളം         मराठी
 मराठी         Монгол
 Монгол         नेपाली
 नेपाली         پښتو
 پښتو         فارسی
 فارسی         Gàidhlig
 Gàidhlig         Српски језик
 Српски језик         Kiswahili
 Kiswahili         தமிழ்
 தமிழ்         Татар теле
 Татар теле         తెలుగు
 తెలుగు         ไทย
 ไทย         اردو
 اردو         O‘zbekcha
 O‘zbekcha         Cymraeg
 Cymraeg         繁體中文
 繁體中文         Tiếng Việt
 Tiếng Việt         हिन्दी
 हिन्दी         ဗမာစာ
 ဗမာစာ         Afrikaans
 Afrikaans         Shqip
 Shqip         አማርኛ
 አማርኛ         العربية
 العربية         Հայերեն
 Հայերեն         অসমীয়া
 অসমীয়া         Azərbaycan dili
 Azərbaycan dili         Euskara
 Euskara         Беларуская мова
 Беларуская мова         বাংলা
 বাংলা         Bosanski
 Bosanski         Català
 Català         Cebuano
 Cebuano         Hrvatski
 Hrvatski         Esperanto
 Esperanto         Tagalog
 Tagalog         Frysk
 Frysk         Galego
 Galego         ქართული
 ქართული         ગુજરાતી
 ગુજરાતી         עִבְרִית
 עִבְרִית         ಕನ್ನಡ
 ಕನ್ನಡ         Norsk bokmål
 Norsk bokmål         தமிழ்
 தமிழ்         བོད་ཡིག
 བོད་ཡིག        