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| Main Standards of Steel Balls |
| In order to meet the needs of international customers, we can manufacture steel balls regulated by international standards or multinational standards,even by our customers’ enterprise standards. |
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| Hardness Conversion Table DIN 50150 |
|
Tensile
Strength
(N/mm2) |
Hardness
Vickers |
Hardness
Brinell* |
HRB |
HRF |
HRC |
HRA |
|
770 |
240 |
228 |
98.1 |
114.3 |
20.3 |
60.7 |
|
785 |
245 |
233 |
|
|
21.3 |
61.2 |
|
800 |
250 |
238 |
99.5 |
115.1 |
22.2 |
61.6 |
|
820 |
265 |
242 |
|
|
23.1 |
62.0 |
|
835 |
260 |
247 |
(101) |
|
24.0 |
62.4 |
|
850 |
265 |
252 |
|
|
25.8 |
62.7 |
|
865 |
270 |
257 |
(102) |
|
25.8 |
63.1 |
|
880 |
275 |
261 |
|
|
26.4 |
63.5 |
|
900 |
208 |
266 |
(104) |
|
27.1 |
63.8 |
|
915 |
285 |
271 |
|
|
27.8 |
64.2 |
|
930 |
290 |
276 |
(105) |
|
28.5 |
64.5 |
|
950 |
295 |
280 |
|
|
29.2 |
64.8 |
|
965 |
300 |
285 |
|
|
29.8 |
65.2 |
|
995 |
310 |
295 |
|
|
31.0 |
65.8 |
|
1030 |
320 |
304 |
|
|
32.2 |
66.4 |
|
1060 |
330 |
314 |
|
|
33.3 |
67.0 |
|
1095 |
340 |
323 |
|
|
34.4 |
67.6 |
|
1125 |
350 |
333 |
|
|
35.5 |
68.1 |
|
1155 |
360 |
342 |
|
|
36.6 |
68.7 |
|
1190 |
370 |
352 |
|
|
37.7 |
69.2 |
|
1220 |
380 |
361 |
|
|
38.8 |
69.8 |
|
1225 |
390 |
371 |
|
|
39.8 |
70.3 |
|
1290 |
400 |
380 |
|
|
40.8 |
70.8 |
|
1320 |
410 |
390 |
|
|
41.8 |
71.4 |
|
1350 |
420 |
399 |
|
|
42.7 |
71.8 |
|
1385 |
430 |
409 |
|
|
43.6 |
72.3 |
|
1420 |
440 |
418 |
|
|
44.5 |
72.8 |
|
1455 |
450 |
428 |
|
|
45.3 |
73.3 |
|
1485 |
460 |
437 |
|
|
46.1 |
73.6 |
|
1520 |
470 |
447 |
|
|
46.9 |
74.1 |
|
1555 |
480 |
(456) |
|
|
47.7 |
74.5 |
|
1595 |
490 |
(466) |
|
|
48.4 |
74.8 |
|
1630 |
500 |
(475) |
|
|
49.1 |
75.3 |
|
1665 |
510 |
(485) |
|
|
49.8 |
75.7 |
|
1700 |
520 |
(494) |
|
|
50.5 |
76.1 |
|
1740 |
530 |
(504) |
|
|
51.1 |
76.4 |
|
1775 |
540 |
(513) |
|
|
51.7 |
76.7 |
|
1810 |
550 |
(523) |
|
|
52.3 |
77.0 |
|
1845 |
560 |
(532) |
|
|
53.0 |
77.4 |
|
1880 |
570 |
(542) |
|
|
53.6 |
77.8 |
|
1920 |
580 |
(551) |
|
|
54.1 |
78.0 |
|
1955 |
590 |
(561) |
|
|
54.7 |
78.4 |
|
1995 |
600 |
(570) |
|
|
55.2 |
78.6 |
|
2030 |
610 |
(580) |
|
|
55.7 |
78.9 |
|
2070 |
620 |
(589) |
|
|
56.3 |
79.2 |
|
2105 |
630 |
(599) |
|
|
56.5 |
79.5 |
|
2145 |
640 |
(608) |
|
|
57.3 |
79.8 |
|
2180 |
650 |
(618) |
|
|
57.8 |
80.0 |
|
|
660 |
|
|
|
58.3 |
80.3 |
|
|
670 |
|
|
|
58.8 |
80.6 |
|
|
680 |
|
|
|
59.2 |
80.8 |
|
|
690 |
|
|
|
59.7 |
81.1 |
|
|
700 |
|
|
|
60.1 |
81.3 |
|
|
720 |
|
|
|
61.0 |
81.8 |
|
|
740 |
|
|
|
61.8 |
82.2 |
|
|
760 |
|
|
|
62.5 |
82.6 |
|
|
780 |
|
|
|
63.3 |
83.0 |
|
|
800 |
|
|
|
64.0 |
83.4 |
|
|
820 |
|
|
|
64.7 |
83.8 |
|
|
840 |
|
|
|
65.3 |
84.1 |
|
|
860 |
|
|
|
65.9 |
84.4 |
|
|
880 |
|
|
|
66.4 |
84.7 |
|
|
900 |
|
|
|
67.0 |
85.0 |
|
|
920 |
|
|
|
67.5 |
85.3 |
|
|
940 |
|
|
|
68.8 |
85.6 | |
* calculate from HB = 0,95 x HV
* errechnet aus HB = 0,95 x HV |
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Copyright © 2008 JINAN BALLS INDUSTRIAL CO., LTD
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