Luke Steel is a reputable producer and supplier of S690QL high-strength steel plates and sheets in Houston, USA. A company that has earned a reputation for quality and customer satisfaction, Luke Steel produces superior quenched and tempered steel products that meet the expectations of various customers. With an emphasis on strength and performance, the S690QL steel offered by the company is suitable for harsh engineering applications. Supported by expert expertise and streamlined logistics, Luke Steel has emerged as a trusted name in the US steel market, serving industries including construction, heavy equipment, oil and gas, and transportation.
S690QL is a quenched and tempered high-strength structural steel with a minimum yield point of 690 MPa. Its chemical analysis contains carbon (≤0.20%), manganese (1.70%), silicon (0.80%), phosphorus (0.020%), sulfur (0.010%), chromium (1.50%), copper (0.50%), molybdenum (0.70%), nickel (2.00%), and vanadium (0.12%). In plates of 3–50 mm thickness, tensile strength is 770–940 MPa, minimum elongation of 14%, and impact toughness of 30 J at -40°C. These attributes confer outstanding strength, toughness, and durability, qualifying S690QL for stressful structural and mechanical applications.
Thickness : 5MM & Above
Width : 1500 – 3500mm
Length : 3000 – 18000mm
Grade : S690QL EN10137-2 EN10025-6:2004, A709-100, DILLIMAX 690, NAXTRA 70, WELDOX 700, E690, JFE HITEN 780LE, ALFORM 700
|
Percentage % |
Element |
Percentage % |
Element |
|
0.050 |
Cu |
0.020 |
C |
|
0.070 |
Mo |
0.080 |
Si |
|
0.006 |
Nb* |
1.070 |
Mn |
|
2.00 |
Ni |
0.0025 |
P |
|
0.005 |
Ti* |
0.0015 |
S |
|
0.012 |
V* |
0.0015 |
N |
|
0.015 |
Zr* |
0.00050 |
B |
|
1.050 |
Cr |
| Plate Thickness | Yield Strength | Tensile Strength | Elongation | Impact Strength |
| MM | ReH (MPa) | Rm (MPa) | A5 % Minimum | J, Minimum |
| 3 to 50 | 690 | 770 – 940 | 14 | 30 @ -40º C |
| > 50 to 100 | 650 | 760 – 930 | 14 | 30 @ -40º C |
| > 100 to 150 | 630 | 710 – 900 | 14 | 30 @ -40º C |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
S690QL plates and sheets find extensive application where there is a need for high strength and toughness. In the field of construction, they are used in bridges, skyscrapers, and stadiums due to their high load-carrying capacities. The mining industry takes advantage of their hardness in machinery such as dump trucks and excavators. In the oil and gas sector, S690QL is applied in offshore platforms and rigs where resistance in adverse conditions is essential. It is also utilized in the production of heavy-duty trucks, cranes, and lifting machinery, providing structural integrity under excessive loads. Such properties render S690QL a first-choice material in all engineering industries.
Luke Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Houstan, USA.
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