|
黑色金属硬度换算表 |
| GB/T 1172-74 |
|
洛 氏 |
表 面 洛 氏
|
维氏
|
布氏
|
|
HRC
|
HRA
|
15N
|
30N
|
45N
|
HV
|
HB
|
|
70.0
|
86.6
|
|
|
|
1037
|
|
|
69.5
|
86.3
|
|
|
|
1017
|
|
|
69.0
|
86.1
|
|
|
|
997
|
|
|
68.5
|
85.8
|
|
|
|
978
|
|
|
68.0
|
85.5
|
|
|
|
959
|
|
|
67.5
|
85.2
|
|
|
|
941
|
|
|
67.0
|
85.0
|
|
|
|
923
|
|
|
66.5
|
84.7
|
|
|
|
906
|
|
|
66.0
|
84.4
|
|
|
|
889
|
|
|
65.5
|
84.1
|
|
|
|
872
|
|
|
65.0
|
83.9
|
92.2
|
81.3
|
71.7
|
856
|
|
|
64.5
|
83.6
|
92.1
|
81.0
|
71.2
|
840
|
|
|
64.0
|
83.3
|
91.9
|
80.6
|
70.6
|
825
|
|
|
63.5
|
83.1
|
91.8
|
80.2
|
70.1
|
810
|
|
|
63.0
|
82.8
|
91.7
|
79.8
|
69.5
|
795
|
|
|
62.5
|
82.5
|
91.5
|
79.4
|
69.0
|
780
|
|
|
62.0
|
82.2
|
91.4
|
79.0 |
68.4
|
766 |
|
|
|
82.0
|
91.2
|
78.6
|
67.9
|
752
|
|
|
61.0
|
81.7
|
91.0
|
78.1
|
67.3
|
739
|
|
|
60.5
|
81.4
|
90.8
|
77.7
|
66.8
|
726
|
|
|
60.0
|
81.2
|
90.6
|
77.3
|
66.2
|
713
|
|
|
59.5
|
80.9
|
90.4 |
76.9 |
65.6
|
700 |
|
|
59.0
|
80.6 |
90.2
|
76.5
|
65.1
|
688
|
|
|
58.5
|
80.3
|
90.0
|
76.1
|
64.5
|
676
|
|
|
58.0
|
80.1
|
89.8
|
75.6
|
63.9
|
664
|
|
|
57.5
|
79.8
|
89.6
|
75.2
|
63.4
|
653
|
|
|
57.0 |
79.5 |
89.4 |
74.8 |
62.8 |
642 |
|
|
56.5 |
79.3 |
89.1 |
74.4 |
62.2 |
631 |
|
|
56.0 |
79.0 |
88.9 |
73.9 |
61.7 |
620 |
|
|
55.5 |
78.7 |
88.6 |
73.5 |
61.1 |
609 |
|
|
55.0
|
78.5
|
88.4 |
73.1 |
60.5 |
599 |
|
|
54.5 |
78.2 |
88.1 |
72.6 |
59.9 |
589 |
|
|
54.0 |
77.9 |
87.9 |
72.2 |
59.4 |
579 |
|
|
53.5 |
77.7 |
87.6 |
71.8 |
58.8 |
570 |
|
|
53.0 |
77.4 |
87.4 |
71.3 |
58.2 |
561 |
|
|
52.5 |
77.1 |
87.1 |
70.9 |
57.6 |
551 |
|
|
52.0 |
76.9 |
86.8 |
70.4 |
57.1 |
543 |
|
|
51.5 |
76.6 |
86.6 |
70.0 |
56.5 |
534 |
|
|
51.0 |
76.3 |
86.3 |
69.5 |
55.9 |
525 |
501 |
|
50.5 |
76.1 |
86.0 |
69.1 |
55.3 |
517 |
494 |
|
50.0 |
75.8 |
85.7 |
68.6 |
54.7 |
509 |
488 |
|
49.5 |
75.5 |
85.5 |
68.2 |
54.2 |
501 |
481 |
|
49.0 |
75.3 |
85.2 |
67.7 |
53.6 |
493 |
474 |
|
48.5 |
75.0 |
84.9 |
67.3 |
53.0 |
485 |
468 |
|
48.0 |
74.7 |
84.6 |
66.8 |
52.4 |
478 |
461 |
|
47.5 |
74.5 |
84.3 |
66.4 |
51.8 |
470 |
455 |
|
47.0 |
74.2 |
84.0 |
65.9 |
51.2 |
463 |
449 |
|
46.5 |
73.9 |
83.7 |
65.5 |
50.7 |
456 |
442 |
|
46.0 |
73.7 |
83.5 |
65.0 |
50.1 |
449 |
436 |
|
45.5 |
73.4 |
83.2 |
64.6 |
49.5 |
443 |
430 |
|
45.0 |
73.2 |
82.9 |
64.1 |
48.9 |
436 |
424 |
|
44.5 |
72.9 |
82.6 |
63.6 |
48.3 |
429 |
418 |
|
44.0 |
72.6 |
82.3 |
63.2 |
47.7 |
423 |
413 |
|
43.5 |
72.4 |
82.0 |
62.7 |
47.1 |
417 |
407 |
|
43.0 |
72.1 |
81.7 |
62.3 |
46.5 |
411 |
401 |
|
42.5 |
71.8 |
81.4 |
61.8 |
45.9 |
405 |
396 |
|
42.0 |
71.6 |
81.1 |
61.3 |
45.4 |
399 |
391 |
|
41.5 |
71.3 |
80.8 |
60.9 |
44.8 |
393 |
385 |
|
41.0 |
71.1 |
80.5 |
60.4 |
44.2 |
388 |
380 |
|
40.5 |
70.8 |
80.2 |
60.0 |
43.6 |
382 |
375 |
|
40.0 |
70.5 |
79.9 |
59.5 |
43.0 |
377 |
370 |
|
39.5 |
70.3 |
79.6 |
59.0 |
42.4 |
372 |
365 |
|
39.0 |
70.0 |
79.3 |
58.6 |
41.8 |
367 |
360 |
|
38.5 |
|
79.0 |
58.1 |
41.2 |
362 |
355 |
|
38.0 |
|
78.7 |
57.6 |
40.6 |
357 |
350 |
|
37.5 |
|
78.4 |
57.2 |
40.0 |
352 |
345 |
|
37.0
|
|
78.1 |
56.7 |
39.4 |
347 |
341 |
|
36.5
|
|
77.8 |
56.2 |
38.8 |
342 |
336 |
|
36.0
|
|
77.5 |
55.8 |
38.2 |
338 |
332 |
|
35.5
|
|
77.2 |
55.3 |
37.6 |
333 |
327 |
|
35.0
|
|
77.0 |
54.8 |
37.0 |
329 |
323 |
|
34.5 |
|
76.7 |
54.4 |
36.5 |
324 |
318 |
|
34.0
|
|
76.4 |
53.9 |
35.9 |
320 |
314 |
|
33.5
|
|
76.1 |
53.4 |
35.3 |
316 |
310 |
|
33.0
|
|
75.8 |
53.0 |
34.7 |
312 |
306 |
|
32.5
|
|
75.5 |
52.5 |
34.1 |
308 |
302 |
|
32.0
|
|
75.2 |
52.0 |
33.5 |
304 |
298 |
|
31.5
|
|
74.9 |
51.6 |
32.9 |
300 |
294 |
|
31.0
|
|
74.7 |
51.1 |
32.3 |
296 |
291 |
|
30.5
|
|
74.4 |
50.6 |
31.7 |
292 |
287 |
|
30.0
|
|
74.1 |
50.2 |
31.1 |
289 |
283 |
|
29.5
|
|
73.8 |
49.7 |
30.5 |
285 |
280 |
|
29.0
|
|
73.5 |
49.2 |
29.9 |
281 |
276 |
|
28.5
|
|
73.3 |
43.7 |
29.3 |
278 |
273 |
|
28.0
|
|
73.0 |
48.3 |
28.7 |
274 |
269 |
|
27.5
|
|
72.7 |
47.8 |
28.1 |
271 |
266 |
|
27.0
|
|
72.4 |
47.3 |
27.5 |
268 |
263 |
|
26.5
|
|
72.2 |
46.9 |
26.9 |
264 |
260 |
|
26.0
|
|
71.9 |
46.4 |
26.3 |
261 |
257 |
|
25.5
|
|
71.6 |
45.9 |
25.7 |
258 |
254 |
|
25.0
|
|
71.4 |
45.5 |
25.1 |
255 |
251 |
|
24.5
|
|
71.1 |
45.0 |
24.5 |
252 |
248 |
|
24.0
|
|
70.8 |
44.5 |
23.9 |
249 |
245 |
|
23.5
|
|
70.6 |
44.0 |
23.3 |
246 |
242 |
|
23.0
|
|
70.3 |
43.6 |
22.7 |
243 |
240 |
|
22.5
|
|
70.0 |
43.1 |
22.1 |
240
|
237 |
|
22.0
|
|
69.8 |
42.6 |
21.5 |
237 |
234 |
|
21.5
|
|
69.5 |
42.2 |
21.0 |
234 |
232 |
|
21.0
|
|
69.3 |
41.7 |
20.4 |
231 |
229 |
|
20.5
|
|
69.0 |
41.2 |
19.8 |
229 |
227 |
|
20.0
|
|
68.8 |
40.7 |
19.2 |
226 |
225 |
|
19.5
|
|
68.5 |
40.3 |
18.6 |
223 |
222 |
|
19.0
|
|
68.3 |
39.8 |
18.0 |
221 |
220 |
|
18.5
|
|
68.0 |
39.3 |
17.4 |
218 |
218 |
|
18.0
|
|
67.8 |
38.9 |
16.8 |
216 |
216 |
|
17.5
|
|
67.6 |
38.4 |
16.2 |
214 |
214 |
|
17.0
|
|
67.3 |
37.9 |
15.6 |
211 |
211 |
|
|
|
