Diameter
of Ball Impression (mm) |
Brinell
Hardness Number
for a Kilogram Load of: |
| 500 |
1000 |
1500 |
2000 |
2500 |
3000 |
|
158
150
143
136
130 |
316
300
286
272
260
|
473
450
428
408
390 |
632
600
572
544
520 |
788
750
714
681
650 |
945
899
856
817
780 |
2.25
2.30
2.35
2.40
2.45 |
124
119
114
109
104 |
248
238
228
218
208 |
372
356
341
327
313 |
496
476
456
436
416 |
621
593
568
545
522 |
745
712
682
653
627 |
2.50
2.55
2.60
2.65
2.70 |
100
96.3
92.6
89.0
85.7 |
200
193
185
178
171 |
301
289
278
267
257 |
400
385
370
356
343 |
500
482
462
445
429 |
601
578
555
534
514 |
2.75
2.80
2.85
2.90
2.95 |
82.6
79.6
76.8
74.1
71.5 |
165
159
154
148
143 |
248
239
230
222
215 |
330
318
307
296
286 |
413
398
384
371
358 |
495
477
461
444
429 |
3.00
3.05
3.10
3.15
3.20 |
69.1
66.8
64.6
62.5
60.5 |
138
134
129
125
121 |
207
200
194
188
182 |
276
267
258
250
242 |
346
334
324
313
303 |
415
401
388
375
363 |
3.25
3.30
3.35
3.40
3.45 |
58.6
56.8
55.1
53.4
51.8 |
117
114
110
107
104 |
176
170
165
160
156 |
234
227
220
214
207 |
293
284
276
267
259 |
352
341
331
321
311 |
3.50
3.55
3.60
3.65
3.70 |
50.3
48.9
47.5
46.1
44.9 |
101
97.8
95.0
92.2
89.8 |
151
147
142
138
135 |
201
196
190
184
180 |
252
244
238
231
225 |
302
293
285
277
269 |
3.75
3.80
3.85
3.90
3.95 |
43.6
42.4
41.3
40.2
39.1 |
87.2
84.8
82.6
80.4
78.2 |
131
127
124
121
117 |
174
170
165
161
156 |
218
212
207
201
196 |
262
255
248
241
235 |
4.00
4.05
4.10
4.15
4.20 |
38.1
37.1
36.2
35.3
34.4 |
76.2
74.2
72.4
70.6
68.8 |
114
111
109
106
103 |
152
148
145
141
138 |
191
186
181
177
172 |
229
223
217
212
207 |
4.25
4.30
4.35
4.40
4.45 |
33.6
32.8
32.0
31.2
30.5 |
67.2
65.6
64.0
62.4
61.0 |
101
98.3
95.9
93.6
91.4 |
134
131
128
125
122 |
167
164
160
156
153 |
201
197
192
187
183 |
4.50
4.55
4.60
4.65
4.70 |
29.8
29.1
28.4
27.8
27.1 |
59.6
58.2
56.8
55.6
54.2 |
89.3
87.2
85.2
83.3
81.4 |
119
116
114
111
108 |
149
145
142
139
136 |
179
174
170
167
163 |
4.75
4.80
4.85
4.90
4.95 |
26.5
25.9
25.4
24.8
24.3 |
53.0
51.8
50.8
49.6
48.6 |
79.6
77.8
76.1
74.4
72.8 |
106
104
102
99.2
97.2 |
133
130
127
124
122 |
159
156
152
149
146 |
5.00
5.05
5.10
5.15
5.20 |
23.8
23.3
22.8
22.3
21.8 |
47.6
46.6
45.6
44.6
43.6 |
71.3
69.8
68.3
66.9
65.5 |
95.2
93.2
91.2
89.2
87.2 |
119
117
114
112
109 |
143
140
137
134
131 |
5.25
5.30
5.35
5.40
5.45 |
21.4
20.9
20.5
20.1
19.7 |
42.8
41.8
41.0
40.2
39.4 |
64.1
62.8
61.5
60.3
59.1 |
85.6
83.6
82.0
80.4
78.8 |
107
105
103
101
98.5 |
128
126
123
121
118 |
5.50
5.55
5.60
5.65
5.70 |
19.3
18.9
18.6
18.2
17.8 |
38.6
37.8
37.2
36.4
35.6 |
57.9
56.8
55.7
54.6
53.5 |
77.2
75.6
74.4
72.8
71.2 |
96.5
95.0
92.5
90.8
89.2 |
116
114
111
109
107 |
5.75
5.80
5.85
5.90
5.95 |
17.5
17.2
16.8
16.5
16.2 |
35.0
34.4
33.6
33.0
32.4 |
52.5
51.5
50.5
49.6
48.7 |
70.0
68.8
67.2
66.0
64.8 |
87.5
85.8
84.2
82.5
81.2 |
105
103
101
99.2
97.3 |
6.00
6.05
6.10
6.15
6.20 |
15.9
15.6
15.3
15.1
14.8 |
31.8
31.2
30.6
30.2
29.6 |
47.7
46.8
46.0
45.2
44.3 |
63.6
62.4
61.2
60.4
59.2 |
79.5
78.0
76.7
75.3
73.8 |
95.5
93.7
92.0
90.3
88.7 |
6.25
6.30
6.35
6.40
6.45 |
14.5
14.2
14.0
13.7
13.5 |
29.0
28.4
28.0
27.4
27.0 |
43.5
42.7
42.0
41.2
40.5 |
58.0
56.8
56.0
54.8
54.0 |
72.6
71.3
70.0
68.8
67.5 |
87.1
85.5
84.0
82.5
81.0 |
