| 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 | MXXXVII | 78.5 | 55.0 | DXCIX | ||
| 86.3 | 69.5 | MXVII | 78.2 | 54.5 | DLXXXIX | ||
| 86,1 | 69.0 | CMXCVII | 77.9 | 54.0 | DLXXIX | ||
| 85.8 | 68.5 | CMLXXVIII | 77.7 | 53.5 | DLXX | ||
| 85,5 | 68.0 | CMLIX | 77.4 | 53.0 | DLXI | ||
| 85.2 | 67.5 | CMXLI | 77,1 | 52.5 | DLI | ||
| 85.0 | 67.0 | CMXXIII | 76.9 | 52.0 | DXLIII | ||
| 84.7 | 66.5 | CMVI | 76.6 | 51.5 | DXXXIV | ||
| 84.4 | 66.0 | DCCCLXXXIX | DI | 76.3 | 51.0 | DXXV | |
| 84.1 | 65.5 | DCCCLXXII | CDXCIV | 76,1 | 50.5 | DXVII | |
| 83.9 | 65.0 | DCCCLVI | CDLXXXVIII | 75.8 | 50.0 | DIX | |
| 83.6 | 64,5 | DCCCXL | CDLXXXI | 75.5 | 49.5 | DI | |
| 83.3 | 64.0 | DCCCXXV | CDLXXIV | 75.3 | 49.0 | CDXCIII | |
| 83.1 | 63.5 | DCCCX | CDLXVIII | 75.0 | 48.5 | CDLXXXV | |
| 82.8 | 63.0 | DCCXCV | CDLXI | 74.7 | 48.0 | CDLXXVIII | |
| 82.5 | 62.5 | DCCLXXX | CDLV | 74.5 | 47.5 | CDLXX | |
| 82.2 | 62.0 | DCCLXVI | CDXLIX | 74.2 | 47.0 | CDLXIII | |
| 82.0 | 61.5 | DCCLII | CDXLII | 73.9 | 46.5 | CDLVI | |
| 81.7 | 61.0 | DCCXXXIX | CDXXXVI | 73.7 | 46.0 | CDXLIX | |
| 81.4 | 60.5 | DCCXXVI | CDXXX | 73.4 | 45.5 | CDXLIII | |
| 81.2 | 60.0 | DCCXIII | CDXXIV | 73.2 | 45.0 | CDXXXVI | |
| 80.9 | 59.5 | DCC | CDXVIII | 72,9 | 44,5 | CDXXIX | |
| 80.6 | 59.0 | DCLXXXVIII | CDXIII | 72.6 | 44.0 | CDXXIII | |
| 80.3 | 58.5 | DCLXXVI | CDVII | 72,4 | 43.5 | CDXVII | |
| 80,1 | 58.0 | DCLXIV | CDI | 72,1 | 43.0 | CDXI | |
| 79.8 | 57.5 | DCLIII | CCCXCVI | 71.8 | 42.5 | CDV | |
| 79.5 | 57.0 | DCXLII | CCCXCI | 71.6 | 42.0 | CCCXCIX | |
| 79.3 | 56.5 | DCXXXI | CCCLXXXV | 71.3 | 41.5 | CCCXCIII | |
| 79.0 | 56.0 | DCXX | CCCLXXX | 71.1 | 41.0 | CCCLXXXVIII | |
| 78.7 | 55.5 | DCIX | CCCLXXV | 70.8 | 40,5 | CCCLXXXII | |
Ferrea metallum materiae duritia valorem conversionem mensam
| 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 | ||||
| CCCLXX | 70.5 | 40.0 | CCCLXXVII | CCLXIX | 28.0 | CCLXXIV | |
| CCCLXV | 70.3 | 39.5 | CCCLXXII | CCLXVI | 27,5 | CCLXXI | |
| CCCLX | 70.0 | 39.0 | CCCLXVII | CCLXIII | 27.0 | CCLXVIII | |
| CCCLV | 38,5 | CCCLXII | CCLX | 26.5 | CCLXIV | ||
| CCCL | 38.0 | CCCLI | CCLVII | 26.0 | CCLXI | ||
| CCCXLV | 37,5 | CCCLII | CCLIV | 25.5 | CCLVIII | ||
| CCCXLI | 37.0 | CCCXLVII | CCLI | 25.0 | CCLV | ||
| CCCXXXVI | 36,5 | CCCXLII | CCXLVIII | 24,5 | CCLII | ||
| CCCXXXII | 36.0 | CCCXXXVIII | CCXLV | 24.0 | CCXLIX | ||
| CCCXXVII | 35.5 | CCCXXXIII | CCXLII | 23,5 | CCXLVI | ||
| CCCXXIII | 35.0 | CCCXXIX | CCXL | 23.0 | CCXLIII | ||
| CCCXVIII | 34,5 | CCCXXIV | CCXXXVII | 22.5 | CCXL | ||
| CCCXIV | 34.0 | CCCXX | CCXXXIV | 22.0 | CCXXXVII | ||
| CCCX | 33.5 | CCCXVI | CCXXXII | 21,5 | CCXXXIV | ||
| CCCVI | 33.0 | CCCXII | CCXXIX | 21.0 | CCXXXI | ||
| CCCII | 32,5 | CCCVIII | CCXXVII | 20.5 | CCXXIX | ||
| CCXCVIII | 32.0 | CCCIV | CCXXV | 20.0 | CCXXVI | ||
| CCXCIV | 31.5 | CCC | CCXXII | 19,5 | CCXXIII | ||
| CCXCI | 31.0 | CCXCVI | CCXX | 19.0 | CCXXI | ||
| CCLXXXVII | 30.5 | CCXCII | CCXVIII | 18,5 | CCXVIII | ||
| CCLXXXIII | 30.0 | CCLXXXIX | CCXVI | 18.0 | CCXVI | ||
| CCLXXX | 29,5 | CCLXXXV | CCXIV | 17.5 | CCXIV | ||
| CCLXXVI | 29.0 | CCLXXXI | CCXI | 17.0 | CCXI | ||
| CCLXXIII | 28.5 | CCLXXVIII | |||||
Nota:
I. brinless, quod maxime solebat metimur duritia castings, remittings, non-ferrea metallum partes, calidum, advolvit billets et annealed partes. Mensurae range est ≥hb450.
II. Rockwell duritia: HRA est maxime usus est summus duritiem specimens ad metimur superficiem duritiam materiae et superficiebus cum duritia altior quam Hrc67, ut cementesserit, et cetera etc. etc. Mass in range, nitrided, etc. et mensurae range est HRA etc. HRC est maxime solebat metimur duritiam ferro partibus (ut ipsum ferro, instrumentum ferro, muro ferro, etc) post extinguendas aut temperatio. Mensurae range est HRC20 ~ LXVII.
III. Vickers duritia: ad metimur duritiam tenuis et ferro laminam partes, et quoque potest metiretur duritiam superficiem partibus ut carburizing, cyaning et nitriding.
Post tempus: Apr-07-2024