STEEL GRADE |
C% max |
Si% max |
Mn% max |
P% max |
S% max |
Cu% max |
Cr% max |
Ni% max |
Mo % max |
B % max |
V % max |
Nb% max |
Ti % max |
Q690C |
0.2 |
0.80 |
1.8 |
0.025 |
0.015 |
0.5 |
1.5 |
2 |
0.70 |
0.005 |
0.12 |
0.06 |
0.05 |
STEEL GRADE |
Re yield strength Mpa min |
Re yield strength Mpa min |
elongation % |
Energy and temperature |
|||||||
Min |
0 |
-20 |
-40 |
-60 |
|||||||
|
t≤50 |
50-100 |
100-150 |
t≤50 |
50-100 |
100-150 |
|
J |
J |
J |
J |
Q690C |
690 |
650 |
630 |
770-940 |
760-930 |
710-900 |
14 |
47 |
47 |
34 |
34 |
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