Operating from the heart of Kinshasa, Yoane Steel stands as a trusted partner for heavy industry, dedicated to meeting the robust demands of major construction and engineering projects. We are your reliable source for high-strength S690ql steel sheets and plates, providing the essential materials that form the backbone of modern infrastructure. We understand that your projects require not just quality, but also dependability, and we are committed to ensuring our supply chain delivers exactly what you need, right when you need it.
When it comes to composition, the S690ql grade is engineered for exceptional resilience. It’s a quenched and tempered steel that achieves a minimum yield strength of 690 MPa, meaning it can withstand immense forces without deforming. This impressive strength is matched by good toughness and weldability, a careful balance achieved through specific alloys. This makes it a material that is not only incredibly strong but also practical to work with in demanding fabrication environments.
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.
The incredible strength of S690ql makes it the material of choice for projects where safety and performance are non-negotiable. You’ll find it being used in the construction of towering crane booms, the sturdy frames of heavy-duty mining equipment, and even in critical sections of bridges that endure constant heavy loads. It’s also essential for building large-scale industrial plants and support structures for offshore platforms, essentially anywhere that demands a material capable of handling extreme stress and weight.
Yoane 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 Kinshasa, Congo.
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