常用維氏、布氏、洛氏硬度的換算表
常用維氏、布氏、洛氏硬度的換算表
|
抗拉強度 RmN/mm2 |
維氏硬度 HV |
布氏硬度 HB |
洛氏硬度 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 |
— |
|
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 |
|
835 |
260 |
247 |
24.0 |
|
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 |
|
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 |
|
1555 |
480 |
(456) |
47.7 |
|
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 |
|
— |
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 |
