Q550E low alloy structural steel
Q550E high strength steel is a high-strength low-alloy structural steel plate, mainly used to manufacture engineering structures used in atmospheric corrosive environments, such as bridges and iron towers.
Q550E high strength alloy steel has high fatigue resistance. Under multiple cyclic loads, the fracture toughness of Q550E hsla structural steel meets the needs of advanced bridge structures. In addition, Q550E hsla steel plate also has good fatigue resistance and can be used for a long time under high stress conditions. Therefore, Q550E high strength low alloy steel plate is suitable for bridge structures, power towers and other engineering fields in high temperature environments.
Q550E low alloy steel chemical composition:
|
C |
Si |
Mn |
P |
S |
Cu |
Cr |
|
0.20 |
0.80 |
1.70 |
0.020 |
0.010 |
0.50 |
1.50 |
|
Ni |
Mo |
B |
V |
Nb |
Ti |
- |
|
2.00 |
0.70 |
0.005 |
0.12 |
0.06 |
0.05 |
- |
Q550E low alloy steel material mechanical properties:
|
Thickness(mm) |
Yield strength (≥Mpa) |
Tensile strength (Mpa) |
Elongation in ≥, A % |
|
T≤50 |
550 |
640-820 |
16 |
|
50<T≤100 |
530 |
640-820 |
|
|
100<T |
490 |
590-770 |
high strength low alloy steel
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