S690QL1 is a quenched and tempered, high-strength structural steel plate that conforms to the EN 10025-6 standard. It has a minimum yield strength of 690 MPa and is designed for low-temperature impact performance down to −60 °C. This steel is used for manufacturing structural components in construction, mining, and other industries requiring high strength and toughness, such as cranes, excavators, and loading machines.
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Gnee steel Grade : |
EN10025-6 S690QL1 |
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Specification (mm) |
THK: 3 to 300, Width: 1500 to 4050, Length: 3000 to 27000 |
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Standard: |
Technical delivery conditions for flat products of high yield strength structural steels in the quenched and tempered condition |
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Approval By Third Party |
ABS, DNV, GL, CCS, LR , RINA, KR, TUV, CE |
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Classification: |
Hot rolled products of structural steels |
S690QL1 Chemical Composition
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S690QL1 Chemical Composition |
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Grade |
The Element Max (%) |
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C |
Si |
Mn |
P |
S |
N |
B |
Cr |
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S690 QL1 |
0.20 |
0.80 |
1.70 |
0.020-0.025 |
0.010-0.015 |
0.015 |
0.005 |
1.50 |
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Cu |
Mo |
Nb |
Ni |
Ti |
V |
Zr |
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0.50 |
0.70 |
0.06 |
2.0 |
0.05 |
0.12 |
0.15 |
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Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
S690QL1 Mechanical Property
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Grade |
S690QL1Mechanical Property |
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Thickness |
Yield |
Tensile |
Elongation |
Min Impact Energy
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S690 QL1 |
mm |
Min Mpa |
Mpa |
Min % |
-60 |
30J |
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3<t≦50 |
890 |
940-1100 |
11 |
-60 |
30J |
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50<t≦100 |
830 |
880-1100 |
11 |
-60 |
30J |
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100<t≦150 |
800 |
820-1000 |
11 |
-60 |
30J |
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