Hardness Conversion Chart
 
 
Brinell Hardness
Rockwell Hardness
Tensile Strength
Tungsten Carbide Ball 3000 KG
A Scale 60KG
B Scale 100KG
C Scale 150KG
(Approx.)
-
85.6
-
68.0
-
-
85.3
-
67.5
-
-
85.0
-
67.0
-
767
84.7
-
66.4
-
757
84.4
-
65.9
-
745
84.1
-
65.3
-
733
83.8
-
64.7
-
722
83.4
-
64.0
-
712
-
-
-
-
710
83.0
-
63.3
-
698
82.6
-
62.5
-
684
82.2
-
61.8
-
682
82.2
-
61.7
-
670
81.8
-
61.0
-
656
81.3
-
60.1
-
653
81.2
-
60.0
-
647
81.1
-
59.7
-
638
80.8
-
59.2
329,000
630
80.6
-
58.8
324,000
627
80.5
-
58.7
323,000
601
79.8
-
57.3
309,000
578
79.1
-
56.0
297,000
555
78.4
-
54.7
285,000
534
77.8
-
53.5
274,000
514
76.9
-
52.1
263,000
495
76.3
-
51.0
253,000
477
75.6
-
49.6
243,000
461
74.9
-
48.5
235,000
444
74.2
-
47.1
225,000
429
73.4
-
45.7
217,000
415
72.8
-
44.5
210,000
401
72.0
-
43.1
202,000
388
71.4
-
41.8
195,000
375
70.6
-
40.4
188,000
363
70.0
-
39.1
182,000
352
69.3
-
37.9
176,000
341
68.7
-
36.6
170,000
 
Brinell Hardness
Rockwell Hardness
Tensile Strength
Tungsten Carbide Ball 3000 KG
A Scale 60KG
B Scale 100KG
C Scale 150KG
(Approx.)
331
68.1
-
35.5
166,000
321
67.5
-
34.3
160,000
311
66.9
-
33.1
155,000
302
66.3
-
32.1
150,000
293
65.7
-
30.9
145,000
285
65.3
-
29.9
141,000
277
64.6
-
28.8
137,000
269
64.1
-
27.6
133,000
262
63.6
-
26.6
129,000
255
63.0
-
25.4
126,000
248
62.5
-
24.2
122,000
241
61.8
100.0
22.8
118,000
235
61.4
99.0
21.7
115,000
229
60.8
98.2
20.5
111,000
223
-
97.3
20.0
-
217
-
96.4
18.0
105,000
212
-
95.5
17.0
102,000
207
-
94.6
16.0
100,000
201
-
93.8
15.0
98,000
197
-
92.8
-
95,000
192
-
91.9
-
93,000
187
-
90.7
-
90,000
183
-
90.0
-
89,000
179
-
89.0
-
87,000
174
-
87.8
-
85,000
170
-
86.8
-
83,000
167
-
86.0
-
81,000
163
-
85.0
-
79,000
156
-
82.9
-
76,000
149
-
80.8
-
73,000
143
-
78.7
-
71,000
137
-
76.4
-
67,000
131
-
74.0
-
65,000
126
-
72.0
-
63,000
121
-
69.8
-
60,000
116
-
67.6
-
58,000
111
-
65.7
-
56,000