拉伸強度與硬度對照表
拉伸強度與硬度對照表
材料局部抵抗硬物壓入其表面的能力稱為硬度，一般可以選購合適的便捷式硬度計來測量。在拉伸試驗中，試樣直至斷裂為止所受的*大拉伸應力即為拉伸強度，可以選配萬能試驗機來測量。硬度和拉伸強度為兩個不同當鋼的硬度在500HB以下時，其抗拉強度與硬度成正比，匯總如下表所示：
|
抗拉強度N/mm2 |
維氏硬度 |
布氏硬度 |
洛氏硬度 |
|
抗拉強度N/mm2 |
維氏硬度 |
布氏硬度 |
洛氏硬度 |
|
Rm |
HV |
HB |
HRB |
Rm |
HV |
HB |
HRB |
|
|
250 |
80 |
76 |
|
1125 |
350 |
333 |
35.5 |
|
|
270 |
85 |
80.7 |
|
1115 |
360 |
342 |
36.6 |
|
|
285 |
90 |
85.2 |
|
1190 |
370 |
352 |
37.7 |
|
|
305 |
95 |
90.2 |
|
1220 |
380 |
361 |
38.8 |
|
|
320 |
100 |
95 |
|
1255 |
390 |
371 |
39.8 |
|
|
335 |
105 |
99.8 |
|
1290 |
400 |
380 |
40.8 |
|
|
350 |
110 |
105 |
|
1320 |
410 |
390 |
41.8 |
|
|
370 |
115 |
109 |
|
1350 |
420 |
399 |
42.7 |
|
|
380 |
120 |
114 |
|
1385 |
430 |
409 |
43.6 |
|
|
400 |
125 |
119 |
|
1420 |
440 |
418 |
44.5 |
|
|
415 |
130 |
124 |
|
1455 |
450 |
428 |
45.3 |
|
|
430 |
135 |
128 |
|
1485 |
460 |
437 |
46.1 |
|
|
450 |
140 |
133 |
|
1520 |
470 |
447 |
46.9 |
|
|
465 |
145 |
138 |
|
1555 |
480 |
456 |
47 |
|
|
480 |
150 |
143 |
|
1595 |
490 |
466 |
48.4 |
|
|
490 |
155 |
147 |
|
1630 |
500 |
475 |
49.1 |
|
|
510 |
160 |
152 |
|
1665 |
510 |
485 |
49.8 |
|
|
530 |
165 |
156 |
|
1700 |
520 |
494 |
50.5 |
|
|
545 |
170 |
162 |
|
1740 |
530 |
504 |
51.1 |
|
|
560 |
175 |
166 |
|
1775 |
540 |
513 |
51.7 |
|
|
575 |
180 |
171 |
|
1810 |
550 |
523 |
52.3 |
|
|
595 |
185 |
176 |
|
1845 |
560 |
532 |
53 |
|
|
610 |
190 |
181 |
|
1880 |
570 |
542 |
53.6 |
|
|
625 |
195 |
185 |
|
1920 |
580 |
551 |
54.1 |
|
|
640 |
200 |
190 |
|
1955 |
590 |
561 |
54.7 |
|
|
660 |
205 |
195 |
|
1995 |
600 |
570 |
55.2 |
|
|
675 |
210 |
199 |
|
2030 |
610 |
580 |
55.7 |
|
|
690 |
215 |
204 |
|
2070 |
620 |
589 |
56.3 |
|
|
705 |
220 |
209 |
|
2105 |
630 |
599 |
56.8 |
|
|
720 |
225 |
214 |
|
2145 |
640 |
608 |
57.3 |
|
|
740 |
230 |
219 |
|
2180 |
650 |
618 |
57.8 |
|
|
755 |
235 |
223 |
|
|
660 |
|
58.3 |
|
|
770 |
240 |
228 |
20.3 |
|
670 |
|
58.8 |
|
|
785 |
245 |
233 |
21.3 |
|
680 |
|
59.2 |
|
|
800 |
250 |
238 |
22.2 |
|
690 |
|
59.7 |
|
|
820 |
255 |
242 |
23.1 |
|
700 |
|
60.1 |
|
|
835 |
260 |
247 |
24 |
|
720 |
|
61 |
|
|
850 |
265 |
252 |
24.8 |
|
740 |
|
61.8 |
|
|
865 |
270 |
257 |
25.6 |
|
760 |
|
62.5 |
|
|
880 |
275 |
261 |
26.4 |
|
780 |
|
63.3 |
|
|
900 |
280 |
266 |
27.1 |
|
800 |
|
64 |
|
|
915 |
285 |
271 |
27.8 |
|
820 |
|
64.7 |
|
|
930 |
290 |
276 |
28.5 |
|
840 |
|
65.3 |
|
|
950 |
295 |
280 |
29.2 |
|
860 |
|
65.9 |
|
|
965 |
300 |
285 |
29.8 |
|
880 |
|
66.4 |
|
|
995 |
310 |
295 |
31 |
|
900 |
|
67 |
|
|
1030 |
320 |
304 |
32.2 |
|
920 |
|
67.5 |
|
|
1060 |
330 |
314 |
33.3 |
|
940 |
|
68 |
|
|
1095 |
340 |
323 |
34.4 |
|
|
|
|
|
|
|
|
|
|
* 洛氏 HRB |
DC01=65 |
DC03=55 |
DC04=50 |
