EN10025-6 refers to the technical delivery conditions for flat products made of high yield strength structural steels in the quenched and tempered condition. And there are seven grade in
EN10025-6 specification such as S460, S500, S550, S620, S690, S890 and S960 etc. Shanghai Katalor has great ex-works plates in grade S690, S460, S620 and so on.
EN10025-6 S620QL Chemical Composition
|
Grade |
Chemical Composition |
|
S620QL |
The Element Max (%) |
|
C |
Si |
Mn |
P |
S |
Nb |
V |
Ti |
Zr |
Cr |
Ni |
Mo |
Cu |
N |
|
0.22 |
0.86 |
1.80 |
0.030 |
0.017 |
0.07 |
0.14 |
0.07 |
0.17 |
1.60 |
2.1 |
0.74 |
0.55 |
0.016 |
EN10025-6 S620QL Mechanical Property
|
Grade |
Mechanical Property |
|
S620QL |
Yield Strength
mm
Min(Mpa) |
Tensile Strength
mm
Min(Mpa) |
Elongation
Min,%
|
|
≥
3
≤
50 |
＞
50
≤
100 |
＞
100
≤
150 |
≥
3
≤
50 |
＞
50
≤
100 |
＞
100
≤
150 |
|
620 |
580 |
560 |
700-890 |
650-830 |
15 |
S620QL steels specified in EN10025-6 document are applicable to hot-rolled flat products with a minimum nominal thickness of 3 mm and a maximum nominal thickness ≤ 150 mm. For grade EN10025-6 S620QL, S is the symbol for structural steel, 620 is the indication of the minimum specified yield strength for thickness < 50 mm expressed in MPa1, Q is for the quenched and tempered delivery condition, and L is for for the quality with specified minimum values of impact energy at temperatures not lower than -40℃.
The steel EN10025-6 S620QL making process shall be in accordance with EN 1 0025-1 . If specified at the time of the order the steel S620QL making process shall be reported to the purchaser. The manufacturer shall inform the purchaser at the time of the enquiry and order which of the alloying elements appropriate to the steel grade S620QL required will be deliberately added to the material to be delivered. The product analysis shall be earned out when specified at the time of the order EN10025-6 S620QL steels.
