国际标准ISO 18265-2013《金属材料-硬度值的换算》表B.4：调质钢（淬火状态）的硬度对照表
| 维氏硬度 | 布氏硬度 | 洛氏硬度 | 洛氏硬度 | 表面洛氏 | 表面洛氏 | 表面洛氏 |
| HV | HBW | HRC | HRA | HR45N | HR30N | HR15N |
| 580 | 572 | 54 | 78.1 | 59.5 | 71.4 | 87.2 |
| 590 | 576 | 54.4 | 78.4 | 59.6 | 71.9 | 87.4 |
| 600 | 580 | 54.8 | 78.6 | 59.9 | 72.3 | 87.6 |
| 610 | 585 | 55.2 | 78.8 | 60.2 | 72.8 | 87.8 |
| 620 | 591 | 55.6 | 79.1 | 60.5 | 73.2 | 88 |
| 630 | 597 | 56.1 | 79.3 | 60.9 | 73.6 | 88.2 |
| 640 | 604 | 56.5 | 79.6 | 61.4 | 74.1 | 88.4 |
| 650 | 611 | 56.9 | 79.8 | 61.8 | 74.5 | 88.7 |
| 660 | 619 | 57.4 | 80.1 | 62.4 | 75 | 88.9 |
| 670 | 627 | 57.8 | 80.3 | 63 | 75.4 | 89.1 |
| 680 | 636 | 58.3 | 80.6 | 63.6 | 75.8 | 89.4 |
| 690 | 646 | 58.7 | 80.9 | 64.2 | 76.2 | 89.6 |
| 700 | 656 | 59.2 | 81.1 | 64.9 | 76.7 | 89.8 |
| 710 | 666 | 59.7 | 81.4 | 65.6 | 77.1 | 90.1 |
| 720 | 677 | 60.1 | 81.7 | 66.4 | 77.5 | 90.3 |
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