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黑色金屬硬度換算表
GB/T 1172-74
洛 氏
表 面 洛 氏
維氏
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
61.5
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
世界鋼號對照表
  01.碳素結構鋼......
  02.優質碳素結構鋼......
  03.碳素工具鋼......
  04.淬透性合金結構鋼......
  05.彈簧鋼......
  06.高速工具鋼......
  07.耐熱鋼......
  08.合金結構鋼......
  09.合金工具鋼......
  10.滾動軸承鋼......
  11.不銹耐酸鋼......
  12.易切結構鋼......