硬度对照表 

  

抗拉强度N/mm2         维氏硬度         布氏硬度         洛氏硬度 

Rm         HV        HB         HRC 

250         80         76.0           

270         85         80.7           

285         90         85.2           

305         95         90.2           

320         100         95.0           

335         105         99.8           

350         110         105           

370         115         109           

380         120         114           

400         125         119           

415         130         124           

430         135         128           

450         140         133           

465         145         138           

480         150         143           

490         155         147           

510         160         152           

530         165         156           

545         170         162           

560         175         166           

575         180         171           

595         185         176           

610         190         181           

625         195         185           

抗拉强度N/mm2         维氏硬度         布氏硬度         洛氏硬度 

640         200         190           

660         205         195           

675         210         199           

690         215         204           

705         220         209           

720         225         214           

740         230         219           

755         235         223           

770         240         228         20.3 

785         245         233         21.3 

800         250         238         22.2 

820         255         242         23.1 

8350         260         247         24. 

850         265         252         24.8 

865         270         257         25.6 

880         275         261         26.4 

900         280         266         27.1 

915         285         271         27.8 

930         290         276         28.5 

950         295         280         29.2 

965         300         285         29.8 

995         310         295         31.0 

1030         320         304         32.2 

1060         330         314         33.3 

1095         340         323         34.4 

1125         350         333         35.5 

1115         360         342         36.6 

1190         370         352         37.7 

抗拉强度N/mm2         维氏硬度         布氏硬度         洛氏硬度 

1220         380         361         38.8 

1255         390         371         39.8 

1290         400         380         40.8 

1320         410         390         41.8 

1350         420         399         42.7 

1385         430         409         43.6 

1420         440         418         44.5 

1455         450         428         45.3 

1485         460         437         46.1 

1520         470         447         46.9 

15557         480         (456)         47. 

1595         490         (466)         48.4 

1630         500         (475)         49.1 

1665         510         (485)         49.8 

1700         520         (494)         50.5 

1740         530         (504)         51.1 

1775         540         (513)         51.7 

1810         550         (523)         52.3 

1845         560         (532)         53.0 

1880         570         (542)         53.6 

1920         580         (551)         54.1 

1955         590         (561)         54.7 

1995         600         (570)         55.2 

2030         610         (580)         55.7 

2070         620         (589)         56.3 

2105         630         (599)         56.8 

2145         640         (608)         57.3 

2180         650         (618)         57.8 

抗拉强度N/mm2         维氏硬度         布氏硬度         洛氏硬度 

          660                   58.3 

          670                   58.8 

          680                   59.2 

          690                   59.7 

          700                   60.1 

          720                   61.0 

          740                   61.8 

          760                   62.5 

          780                   63.3 

          800                   64.0 

          820                   64.7 

          840                   65.3 

          860                   65.9 

          880                   66.4 

          900                   67.0 

          920                   67.5 

          940                   68.0 

  

硬度试验是机械性能试验中最简单易行的一种试验方法。为了能用硬度试验代替某些机械性能试验，生产上需要一个比较准确的硬度和强度的换算关系。

实践证明，金属材料的各种硬度值之间，硬度值与强度值之间具有近似的相应关系。因为硬度值是由起始塑性变形抗力和继续塑性变形抗力决定的，材料的强度越高，塑性变形抗力越高，硬度值也就越高。 

下面是本站根据由实验得到的经验公式制作的快速计算器，有一定的实用价值，但在要求数据比较精确时，仍需要通过试验测得