Hardness Conversion Tables

台灣芃宸科技
 TAIWAN PCHEN 

九兆金屬科技
 CHIU CHAO METAL

Vickers
Rockwell
HV
HRA
HRB
HRC
HRD

588.4N（60㎏f）
980.7N（100㎏f）
147.1N（150㎏f）
980.7N（100㎏f）

100

-
56.2
-
-
110
-
62.3
-
-
120
-
66.7
-
-
130
-
71.2
-
-
140
-
75.0
-
-
150
-
78.7
-
-
160
-
81.7
0.0
-
170
-
85.0
3.0
-
180
-
87.1
6.0
-
190
-
89.5
8.5
-
200
-
91.5
11.0
-
210
-
93.4
13.4
-
220
-
95.0
15.7
-
230
-
96.7
18.0
-
240
60.7
98.1
20.3
40.3
245
61.2
-
21.3
41.1
250
61.6
99.5
22.2
41.7
255
62.0
-
23.1
42.2
260
62.4
101.0
24.0
43.1
265
62.7
-
24.8
43.7
270
63.1
102.0
25.6
44.3
275
63.5
-
26.4
44.9
280
63.8
103.5
27.1
45.3
285
64.2
-
27.8
46.0
290
64.5
104.5
28.5
46.5
295
64.8
-
29.2
47.1
300
65.2
105.5
29.8
47.5
310
65.8
-
31.0
48.4
320
66.4
107.0
32.2
49.4
330
67.0
-
33.3
50.2
340
67.6
108.0
34.4
51.1
350
68.1
-
35.5
51.9
360
68.7
109.0
36.6
52.8
370
69.2
-
37.7

53.6

380
69.8
110.0
38.8
54.4
390
70.3
-
39.8
55.2
400
70.8
-
40.8
56.0
410
71.4
-
41.8
56.8
420
71.8
-
42.7
57.5
430
72.3
-
43.6
58.2
440
72.8
-
44.5
58.8
450
73.3
-
45.3
59.4
460
73.6
-
46.1
60.1
470
74.1
-
46.9
60.7
480
74.5
-
47.7
61.3
490
74.9
-
48.4
61.6
500
75.3
-
49.1
62.2
510
75.7
-
49.8
62.9
520
76.1
-
50.5
63.5
530
76.0
-
51.1
63.9
540
76.7
-
51.7
64.4
550
77.0
-
52.3
64.8
560
77.4
-
53.0
65.4
570
77.8
-
53.6
65.8
580
78.0
-
54.1
66.2
590
78.4
-
54.7
66.7
600
78.6
-
55.2
67.0
610
78.9
-
55.7
67.5
620
79.2
-
56.3
67.9
630
79.5
-
56.8
68.3
640
79.8
-
57.3
68.7
650
80.0
-
57.8
69.0
660
80.3
-
58.3
69.4
670
80.6
-
58.8
69.8
680
80.8
-
59.2
70.1
690
81.1
-
59.7
70.5
700
81.3
-
60.1
70.8
720
81.8
-
61.0
71.5
740
82.2
-
61.8
72.1
760
82.6
-
62.5
72.6
780
83.0
-
63.3
73.3
800
83.4
-
64.0
73.8
820
83.8
-
64.7
74.3
840
84.1
-
65.3
74.8
860
84.4
-
65.9
75.3
880
84.7
-
66.4
75.7
900
85.0
-
67.0
76.1
920
85.3
-
67.5
76.5
940
85.6
-
68.0
76.9