|
Thickness, mm |
Max CEV based on the ladle analysis |
|
5≤t≤50 |
0.65% |
|
50＜t≤100 |
0.77% |
|
100＜t≤150 |
0.83% |
|
Grade |
Thickness |
Yield |
Tensile Strength |
Elongation |
Charpy V Notch Impact Test |
|
|
Degree |
Min Value |
|||||
|
S620QL |
mm |
Min Mpa |
Mpa |
Min % |
-40℃ |
J |
|
5≤t≤50 |
620 |
700-890 |
15% |
30 |
||
|
50＜t≤100 |
580 |
700-890 |
30 |
|||
|
100＜t≤150 |
560 |
650-830 |
30 |
|||
|
Note: Impact energy for impact test is on longitudinal |
||||||
|
C |
Si |
Mn |
Ni |
P |
S |
Cr |
Mo |
V |
Nb |
Cu |
Ni |
B |
N |
Zr |
Ti |
|
0.22 |
0.86 |
1.8 |
0.8 |
0.025 |
0.012 |
1.6 |
0.74 |
0.14 |
0.07 |
0.55 |
2.1 |
0.006 |
0.016 |
0.17 |
0.07 |
