Explicació de termes de HRA, HRC, HV
1 ， El bit de perforació HRA és un cos cònic de diamant de 120+-0,5 °, amb una curvatura superior de 0,2+-0,002 mm i una càrrega de 60kg.
2 ， El bit de perforació HRC és un cos cònic de diamant de 120+-0,5 °, amb una curvatura superior de 0,2+-0,002 mm i una càrrega de 150kg
3 ， HV Surface diagonal de 136 ° Piràmide de piràmide de piràmide quadrangular Bit, el valor de duresa és la pressió específica a la zona de la unitat de sagnat, la càrrega és de 50/100 gram de força, la zona de sagnat és diversos, el valor és kg/mm
| HV | HRC | Hra | HV | HRC | Hra | HV | HRC | Hra |
| 1700.0 | 80,5 | 92,5 | 528.0 | 51,0 | 76,0 | 31,0 | 66,0 | |
| 1600.0 | 80,0 | 92.0 | 513.0 | 50,0 | 76,0 | 301.0 | 30,0 | 66,0 |
| 1550.0 | 79,0 | 91.5 | 498.0 | 49,0 | 76,0 | 29,0 | 65,0 | |
| 1500,0 | 78,0 | 91.0 | 48,5 | 75,0 | 28,5 | 65,0 | ||
| 1450.0 | 77,0 | 90,5 | 485.0 | 48,0 | 75,0 | 285,0 | 28,0 | 65,0 |
| 1400.0 | 76,0 | 90,0 | 47,5 | 74,5 | 27,5 | 64,5 | ||
| 1350.0 | 75,0 | 89,5 | 471.0 | 47,0 | 74,0 | 27,0 | 64,0 | |
| 1300.0 | 74,0 | 89,0 | 458.0 | 46,0 | 73,5 | 26,5 | 64,0 | |
| 1250.0 | 73,0 | 88,5 | 45,0 | 73,0 | 271.0 | 26,0 | 64,0 | |
| 1200.0 | 72.0 | 88,0 | 446.0 | 44,5 | 73,0 | 25,5 | 63,5 | |
| 1150.0 | 71,5 | 87,5 | 435.0 | 44,0 | 73,0 | 25,0 | 63,0 | |
| 1140.0 | 71.0 | 87,0 | 43,5 | 72,5 | 24.5 | 63,0 | ||
| 1076.0 | 70,0 | 86,5 | 43,0 | 72.0 | 257,0 | 24.0 | 62,5 | |
| 1004,0 | 69,0 | 86,0 | 413.0 | 42,0 | 72.0 | 23.5 | 62.0 | |
| 942.0 | 68,0 | 85,8 | 41,5 | 71,5 | 23.0 | 62.0 | ||
| 894.0 | 67,0 | 85,0 | 41,0 | 71.0 | 22.5 | 62.0 | ||
| 854.0 | 66,0 | 84,5 | 40,5 | 70,5 | 22.0 | 62.0 | ||
| 820,0 | 65,0 | 84,0 | 393.0 | 40,0 | 70,5 | 21.5 | 61.5 | |
| 789.0 | 64,0 | 83,5 | 39,5 | 70,0 | 21.0 | 61.0 | ||
| 763.0 | 63,0 | 83,0 | 39,0 | 70,0 | 20,5 | 61.0 | ||
| 739.0 | 62.0 | 82,5 | 38,5 | 69,5 | 236.0 | 20.0 | 61.0 | |
| 716.0 | 61.0 | 82.0 | 373.0 | 38,0 | 69,0 | 223.0 | 19.5 | 60,5 |
| 695.0 | 60,0 | 81.5 | 37,5 | 69,0 | 217.0 | 19.0 | 60,0 | |
| 675.0 | 59,0 | 81.0 | 37,0 | 69,0 | 18,5 | 60,0 | ||
| 655.0 | 58,0 | 80,5 | 36,5 | 68,5 | 209.0 | 18,0 | 60,0 | |
| 636.0 | 57,0 | 80,0 | 353.0 | 36,0 | 68,0 | 205.0 | 60,0 | |
| 56,5 | 79,5 | 35,5 | 68,0 | 197.0 | 59,0 | |||
| 617.0 | 56,0 | 79,0 | 35,0 | 67,5 | 195.0 | 58,0 | ||
| 598.0 | 55,0 | 78,0 | 334.0 | 34,5 | 67,0 | 191.0 | 57,5 | |
| 580.0 | 54,0 | 78,0 | 34,0 | 67,0 | 186.0 | 56,0 | ||
| 562.0 | 53,0 | 78,0 | 33,5 | 67,0 | ||||
| 545.0 | 52,0 | 77,0 | 317.0 | 32,0 | 67,0 | |||
| 51,5 | 76,5 | 31,5 | 66,0 |
Hora de publicació: 18-2024 d'abril