Tabela porównawcza twardości wg skal twardości: Brinell’a, Vickers’a, Rockwell’a, Leeb’a.
Brinell |
Vickers |
Rockwell Skala C |
Leeb |
HB |
HV |
HRC |
HLD |
Średnica kulki 10mm, |
Przy nacisku 1 kg |
Stożek diamentowy 1200, przy nacisku 150 kg |
Głowica uniwersalna D |
81 |
85 |
- |
300 |
90 |
95 |
- |
321 |
95 |
100 |
- |
331 |
105 |
110 |
- |
350 |
114 |
120 |
- |
365 |
130 |
130 |
- |
390 |
135 |
135 |
- |
397 |
140 |
141 |
- |
404 |
141 |
142 |
- |
405 |
143 |
144 |
- |
408 |
145 |
146 |
- |
411 |
147 |
147 |
- |
413 |
150 |
149 |
- |
417 |
152 |
150 |
- |
420 |
154 |
152 |
1 |
423 |
156 |
154 |
2 |
425 |
160 |
159 |
3 |
430 |
163 |
162 |
4 |
434 |
165 |
165 |
5 |
437 |
167 |
168 |
6 |
439 |
170 |
171 |
7 |
443 |
175 |
174 |
9 |
449 |
180 |
177 |
10 |
455 |
183 |
183 |
11 |
459 |
185 |
184 |
12 |
461 |
187 |
186 |
13 |
463 |
191 |
190 |
14 |
468 |
196 |
197 |
15 |
474 |
200 |
199 |
16 |
478 |
203 |
201 |
17 |
482 |
206 |
209 |
18 |
485 |
211 |
213 |
19 |
491 |
217 |
217 |
20 |
497 |
224 |
221 |
21 |
505 |
229 |
226 |
22 |
510 |
237 |
235 |
23 |
518 |
240 |
240 |
23 |
521 |
245 |
246 |
24 |
526 |
249 |
250 |
25 |
530 |
258 |
258 |
27 |
539 |
261 |
261 |
28 |
542 |
269 |
272 |
29 |
550 |
276 |
278 |
30 |
557 |
285 |
285 |
31 |
565 |
293 |
291 |
32 |
572 |
301 |
305 |
33 |
579 |
311 |
312 |
34 |
588 |
323 |
320 |
35 |
599 |
331 |
335 |
36 |
605 |
341 |
344 |
37 |
613 |
346 |
352 |
37 |
617 |
351 |
361 |
38 |
621 |
362 |
380 |
39 |
630 |
370 |
385 |
40 |
635 |
375 |
390 |
41 |
640 |
388 |
401 |
42 |
650 |
401 |
423 |
43 |
660 |
415 |
435 |
44 |
669 |
427 |
460 |
45 |
677 |
444 |
474 |
46 |
688 |
451 |
489 |
47 |
693 |
461 |
502 |
48 |
699 |
477 |
534 |
49 |
709 |
495 |
551 |
51 |
719 |
502 |
565 |
52 |
724 |
514 |
587 |
53 |
731 |
529 |
606 |
54 |
739 |
545 |
639 |
55 |
748 |
552 |
649 |
56 |
751 |
576 |
694 |
57 |
763 |
590 |
727 |
59 |
770 |
601 |
746 |
60 |
776 |
614 |
775 |
61 |
782 |
626 |
803 |
62 |
787 |
652 |
867 |
63 |
799 |
668 |
905 |
64 |
806 |
682 |
940 |
65 |
812 |
712 |
1021 |
66 |
824 |
725 |
1060 |
67 |
829 |
745 |
1114 |
68 |
837 |
760 |
1170 |
70 |
843 |
780 |
1220 |
71 |
850 |
800 |
- |
72 |
856 |
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