EN 10025-6 steel grade specification is a high yield strength structural steels in the quenched and tempered condition steel plate grade in S550Q, S550QL, S550QL1, S500Q, S890QL1, S960Q, S960QL, S620Q, S620QL, S690Q, S690QL, S690QL1, S890Q and S890QL steel plate grade.
| According BS EN 10025-6:2004 | Comparison of steel grades | ||||
| EU 137 (1983) | Germany | France | Sweden | ||
| S550Q | 1.89 | FeE 550 V | -StE 500 V | - | |
| S550QL | 1.89 | FeE550V KT | TStE 500 V | E 500T | - |
| S550QL1 | 1.9 | EStE50V- | - | ||
| Chemical elements | C | Si | Mn | P | S | N | B | Cr | Cu | Mo | Nb | Ni | Ti | V | Zr |
| max. | max. | max. | max. | max. | max. | max. | max. | max. | max. | max. | max. | max. | max. | max. | |
| %,by mass | 0,20 | 0,80 | 1,70 | 0,025 | 0,015 | 0,015 | 0,005 | 1,50 | 0,50 | 0,70 | 0,06 | 2,0 | 0,05 | 0,12 | 0,15 |
| L | 0,020 | 0,010 | |||||||||||||
| L1 | 0,020 | 0,010 |
S550Q S550QL S550QL1 steel plate Mechanical properties
|
thickness
|
Yield Strength ReH [N/mm2]
transv.min.
|
Tensile Strength Rm [N/mm2] transv.
|
Fracture Elongation[%]transv. min.
|
Minimum values of impact energy in J at test temperatures, in ºC
|
|||
|
t> 3 mm
t≤ 50mm
|
550
|
640 to 820
|
|
0
|
-20
|
-40
|
-60
|
|
t> 50 mm
t≤ 100mm
|
530
|
|
16
|
40
|
30
|
-
|
-
|
|
50
|
40
|
30
|
-
|
||||
|
t> 100 mm
t≤ 150 mm
|
490
|
590 to 770
|
|
60
|
50
|
40
|
-
|
Source:
