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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 |
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21.3 |
61.2 |
800 |
250 |
238 |
99.5 |
115.1 |
22.2 |
61.6 |
820 |
265 |
242 |
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23.1 |
62.0 |
835 |
260 |
247 |
(101) |
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24.0 |
62.4 |
850 |
265 |
252 |
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25.8 |
62.7 |
865 |
270 |
257 |
(102) |
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25.8 |
63.1 |
880 |
275 |
261 |
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26.4 |
63.5 |
900 |
208 |
266 |
(104) |
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27.1 |
63.8 |
915 |
285 |
271 |
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27.8 |
64.2 |
930 |
290 |
276 |
(105) |
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28.5 |
64.5 |
950 |
295 |
280 |
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29.2 |
64.8 |
965 |
300 |
285 |
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29.8 |
65.2 |
995 |
310 |
295 |
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31.0 |
65.8 |
1030 |
320 |
304 |
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32.2 |
66.4 |
1060 |
330 |
314 |
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33.3 |
67.0 |
1095 |
340 |
323 |
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34.4 |
67.6 |
1125 |
350 |
333 |
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35.5 |
68.1 |
1155 |
360 |
342 |
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36.6 |
68.7 |
1190 |
370 |
352 |
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37.7 |
69.2 |
1220 |
380 |
361 |
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38.8 |
69.8 |
1225 |
390 |
371 |
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39.8 |
70.3 |
1290 |
400 |
380 |
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40.8 |
70.8 |
1320 |
410 |
390 |
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41.8 |
71.4 |
1350 |
420 |
399 |
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42.7 |
71.8 |
1385 |
430 |
409 |
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43.6 |
72.3 |
1420 |
440 |
418 |
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44.5 |
72.8 |
1455 |
450 |
428 |
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45.3 |
73.3 |
1485 |
460 |
437 |
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46.1 |
73.6 |
1520 |
470 |
447 |
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46.9 |
74.1 |
1555 |
480 |
(456) |
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47.7 |
74.5 |
1595 |
490 |
(466) |
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48.4 |
74.8 |
1630 |
500 |
(475) |
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49.1 |
75.3 |
1665 |
510 |
(485) |
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49.8 |
75.7 |
1700 |
520 |
(494) |
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50.5 |
76.1 |
1740 |
530 |
(504) |
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51.1 |
76.4 |
1775 |
540 |
(513) |
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51.7 |
76.7 |
1810 |
550 |
(523) |
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52.3 |
77.0 |
1845 |
560 |
(532) |
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53.0 |
77.4 |
1880 |
570 |
(542) |
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53.6 |
77.8 |
1920 |
580 |
(551) |
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54.1 |
78.0 |
1955 |
590 |
(561) |
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54.7 |
78.4 |
1995 |
600 |
(570) |
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55.2 |
78.6 |
2030 |
610 |
(580) |
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55.7 |
78.9 |
2070 |
620 |
(589) |
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56.3 |
79.2 |
2105 |
630 |
(599) |
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56.5 |
79.5 |
2145 |
640 |
(608) |
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57.3 |
79.8 |
2180 |
650 |
(618) |
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57.8 |
80.0 |
|
660 |
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58.3 |
80.3 |
|
670 |
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58.8 |
80.6 |
|
680 |
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59.2 |
80.8 |
|
690 |
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59.7 |
81.1 |
|
700 |
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60.1 |
81.3 |
|
720 |
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61.0 |
81.8 |
|
740 |
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61.8 |
82.2 |
|
760 |
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62.5 |
82.6 |
|
780 |
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63.3 |
83.0 |
|
800 |
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64.0 |
83.4 |
|
820 |
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64.7 |
83.8 |
|
840 |
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65.3 |
84.1 |
|
860 |
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65.9 |
84.4 |
|
880 |
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66.4 |
84.7 |
|
900 |
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67.0 |
85.0 |
|
920 |
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67.5 |
85.3 |
|
940 |
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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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