Operating from the heart of Addis Ababa, Desta Steel stands as a dedicated partner for Ethiopia’s most demanding construction and engineering projects. We take pride in supplying premium S690QL steel sheets and plates, materials chosen for their exceptional strength and reliability. When your work requires a foundation of unwavering durability, our high-yield strength steel provides the robust backbone necessary to build with confidence and ensure lasting structural integrity.
The strength of S690QL steel comes from a carefully balanced chemical composition, primarily iron alloyed with precise amounts of carbon, manganese, and chromium, often enhanced with micro-alloying elements. This specific recipe gives it remarkable mechanical properties, most notably a minimum yield strength of 690 MPa. This means it can withstand immense forces without permanently deforming, and it also offers excellent toughness, even in challenging low-temperature environments, making it exceptionally resilient.
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.
You will find S690QL steel at the core of structures where safety and performance are non-negotiable. Its high strength-to-weight ratio makes it ideal for heavy-duty construction, from the skeletons of towering buildings and expansive bridges to the robust frames of mobile cranes and heavy machinery. It is also essential in the mining and quarrying industries for equipment that must endure extreme wear and impact, ensuring these critical operations run smoothly and safely for years to come.
Desta 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 Addis Ababa, Ethiopia.
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