CONNEX Spring PinsHardness Comparison Table: |
Rockwell HRc |
Rockwell Hra |
Vickers HV |
Tensile Strength PSI* |
42 |
71.5 |
412 |
194,000 |
43 |
72 |
423 |
201,000 |
44 |
72.5 |
434 |
208,000 |
45 |
73.1 |
446 |
215,000 |
46 |
73.6 |
458 |
221,000 |
47 |
74.1 |
471 |
229,000 |
48 |
74.7 |
484 |
238,000 |
49 |
75.2 |
498 |
246,000 |
50 |
75.9 |
513 |
255,000 |
51 |
76.3 |
528 |
264,000 |
52 |
76.8 |
544 |
273,000 |
53 |
77.4 |
560 |
283,000 |
54 |
78.0 |
577 |
292,000 |
55 |
78.5 |
595 |
301,000 |
56 |
79.0 |
613 |
313,000 |
57 |
79.6 |
633 |
325,000 |
58 |
80.1 |
653 |
338,000 |
59 |
80.7 |
674 |
351,000 |
60 |
81.2 |
697 |
364,000 |
*Inexact and only for steel |
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