布氏硬度 HB |
洛氏硬度 HRC |
维氏硬度 HV |
|
布氏硬度 HB |
洛氏硬度 HRC |
维氏硬度 HV |
|
68.0 |
940 |
|
415 |
44.5 |
440 |
|
67.5 |
920 |
|
401 |
43.1 |
425 |
|
67.0 |
900 |
|
388 |
41.8 |
410 |
767 |
66.4 |
880 |
|
375 |
40.4 |
396 |
757 |
65.9 |
860 |
|
363 |
39.1 |
383 |
745 |
65.3 |
840 |
|
352 |
37.9 |
372 |
733 |
64.7 |
920 |
|
341 |
36.6 |
360 |
722 |
64.0 |
900 |
|
331 |
35.5 |
350 |
710 |
63.3 |
780 |
|
321 |
34.3 |
339 |
698 |
62.5 |
760 |
|
311 |
33.1 |
328 |
684 |
61.8 |
740 |
|
302 |
32.1 |
319 |
682 |
61.7 |
737 |
|
293 |
30.9 |
309 |
670 |
61.0 |
720 |
|
285 |
29.9 |
301 |
656 |
60.1 |
700 |
|
277 |
28.8 |
292 |
653 |
60.0 |
697 |
|
269 |
27.6 |
284 |
647 |
59.7 |
690 |
|
262 |
26.6 |
276 |
638 |
59.2 |
680 |
|
255 |
25.4 |
269 |
630 |
58.8 |
670 |
|
248 |
24.2 |
261 |
627 |
58.7 |
667 |
|
241 |
22.8 |
253 |
620 |
58.3 |
660 |
|
235 |
21.7 |
247 |
601 |
57.3 |
640 |
|
229 |
20.5 |
241 |
578 |
56.0 |
615 |
|
223 |
|
234 |
|
55.6 |
607 |
|
217 |
|
228 |
555 |
54.7 |
591 |
|
212 |
|
222 |
|
54.0 |
579 |
|
207 |
|
218 |
534 |
53.5 |
569 |
|
201 |
|
212 |
|
52.5 |
553 |
|
197 |
|
207 |
514 |
52.1 |
547 |
|
192 |
|
202 |
|
51.6 |
539 |
|
187 |
|
296 |
|
51.1 |
530 |
|
183 |
|
192 |
495 |
51.0 |
528 |
|
179 |
|
188 |
|
50.3 |
516 |
|
174 |
|
183 |
477 |
49.6 |
508 |
|
170 |
|
178 |
|
48.8 |
495 |
|
167 |
|
175 |
461 |
48.5 |
491 |
|
163 |
|
171 |
|
47.2 |
474 |
|
156 |
|
163 |
444 |
47.1 |
472 |
|
149 |
|
156 上一篇[轴和孔的公差(ISO)表] 下一篇[机床精度的检测及对加工的影响] |