|
布氏硬度HB
|
洛氏硬度
|
维氏硬度HV
|
布氏硬度HB
|
洛氏硬度
|
维氏硬度HV
|
|
HRA
|
HRC
|
HRA
|
HRC
|
|
|
86.6
|
70.0
|
1037
|
|
78.5
|
55.0
|
599
|
|
|
86.3
|
69.5
|
1017
|
|
78.2
|
54.5
|
589
|
|
|
86.1
|
69.0
|
997
|
|
77.9
|
54.0
|
579
|
|
|
85.8
|
68.5
|
978
|
|
77.7
|
53.5
|
570
|
|
|
85.5
|
68.0
|
959
|
|
77.4
|
53.0
|
561
|
|
|
85.2
|
67.5
|
941
|
|
77.1
|
52.5
|
551
|
|
|
85.0
|
67.0
|
923
|
|
76.9
|
52.0
|
543
|
|
|
84.7
|
66.5
|
906
|
|
76.6
|
51.5
|
534
|
|
|
84.4
|
66.0
|
889
|
501
|
76.3
|
51.0
|
525
|
|
|
84.1
|
65.5
|
872
|
494
|
76.1
|
50.5
|
517
|
|
|
83.9
|
65.0
|
856
|
488
|
75.8
|
50.0
|
509
|
|
|
83.6
|
64.5
|
840
|
481
|
75.5
|
49.5
|
501
|
|
|
83.3
|
64.0
|
825
|
474
|
75.3
|
49.0
|
493
|
|
|
83.1
|
63.5
|
810
|
468
|
75.0
|
48.5
|
485
|
|
|
82.8
|
63.0
|
795
|
461
|
74.7
|
48.0
|
478
|
|
|
82.5
|
62.5
|
780
|
455
|
74.5
|
47.5
|
470
|
|
|
82.2
|
62.0
|
766
|
449
|
74.2
|
47.0
|
463
|
|
|
82.0
|
61.5
|
752
|
442
|
73.9
|
46.5
|
456
|
|
|
81.7
|
61.0
|
739
|
436
|
73.7
|
46.0
|
449
|
|
|
81.4
|
60.5
|
726
|
430
|
73.4
|
45.5
|
443
|
|
|
81.2
|
60.0
|
713
|
424
|
73.2
|
45.0
|
436
|
|
|
80.9
|
59.5
|
700
|
418
|
72.9
|
44.5
|
429
|
|
|
80.6
|
59.0
|
688
|
413
|
72.6
|
44.0
|
423
|
|
|
80.3
|
58.5
|
676
|
407
|
72.4
|
43.5
|
417
|
|
|
80.1
|
58.0
|
664
|
401
|
72.1
|
43.0
|
411
|
|
|
79.8
|
57.5
|
653
|
396
|
71.8
|
42.5
|
405
|
|
|
79.5
|
57.0
|
642
|
391
|
71.6
|
42.0
|
399
|
|
|
79.3
|
56.5
|
631
|
385
|
71.3
|
41.5
|
393
|
|
|
79.0
|
56.0
|
620
|
380
|
71.1
|
41.0
|
388
|
|
|
78.7
|
55.5
|
609
|
375
|
70.8
|
40.5
|
382
|
注:1.布氏硬度:主要用来测定铸件、锻件、有色金属制件、热轧坯料及退火件的硬度,测定范围≯HB450。
2.洛氏硬度:HRA主要用于高硬度试件,测定硬度高于HRC67以上的材料和表面硬度,如硬质合金、氮化钢等，测定范围HRA>70。HRC主要用于钢制件(如碳钢、工具钢、合金钢等）淬火或回火后的硬度测定,测定范围HRC20~67。
3.维氏硬度:用来测定薄件和钢板制件的硬度,也可用来测定渗碳、氰化、氮化等表面硬化制件的硬度。