|
Steel grade |
Ultimate strength |
Yield point |
Elongation |
Reduction |
Impact strength J/cm² |
Hardness number nb |
N/mm² |
% | |||||
not less than |
not more than | |||||
10 |
330 |
205 |
31 |
55 |
- |
143 |
15 |
370 |
225 |
27 |
55 |
- |
149 |
20 |
410 |
245 |
25 |
55 |
- |
163 |
25 |
450 |
275 |
23 |
50 |
88 |
170 |
30 |
490 |
295 |
21 |
50 |
78 |
179 |
35 |
530 |
315 |
20 |
45 |
69 |
207 |
40 |
570 |
335 |
19 |
45 |
59 |
217 |
45 |
600 |
355 |
16 |
40 |
49 |
229 |
50 |
630 |
375 |
14 |
40 |
38 |
241 |
55 |
650 |
380 |
13 |
35 |
- |
255 |
60 |
680 |
400 |
12 |
35 |
- |
255 |
20X |
780 |
635 |
11 |
40 |
59 |
179 |
30X |
880 |
685 |
12 |
45 |
69 |
187 |
35X |
910 |
735 |
11 |
45 |
69 |
197 |
40X |
980 |
785 |
10 |
45 |
59 |
217 |
45X |
1030 |
835 |
9 |
45 |
49 |
229 |