Latham Steel, a reliable manufacturer and supplier based in Hamilton, New Zealand, specializes in high-quality S690QL steel sheets and plates designed for outstanding strength and performance. S690QL is a quenched and tempered high-strength structural steel, celebrated for its remarkable toughness, consistent mechanical properties, and dependable load-bearing capacity. Latham Steel guarantees precise thickness control, a uniform surface finish, and verifiable quality standards, making these plates perfect for demanding engineering and fabrication projects. With their impressive strength-to-weight ratio and durability under heavy stress, S690QL plates are ideal for advanced designs where minimizing weight, boosting efficiency, and ensuring long-term structural integrity are essential.
S690QL steel features low carbon content along with alloying elements like chromium, nickel, molybdenum, and manganese, which contribute to its high strength and enhanced hardenability. This steel is produced through a quenching and tempering process, achieving a minimum yield strength of 690 MPa and excellent tensile strength, along with remarkable impact resistance—even in sub-zero temperatures. Its refined grain structure ensures superior toughness and resistance to brittle fracture. Additionally, the material offers good weldability when proper preheat and post-weld procedures are followed. With consistent hardness and high fatigue resistance, S690QL is perfect for critical structural and heavy-duty applications.
Thickness :Â 5MM & Above
Width : 1500 – 3500mm
Length : 3000 – 18000mm
Grade :Â 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 |
| Â Plate Thickness | Yield Strength | Â Tensile Strength | Elongation | Â 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 steel sheets and plates find extensive use in industries where high structural strength and weight reduction are crucial. They are commonly found in crane booms, heavy-duty trailers, lifting equipment, mining machinery, earthmoving machines, and robust truck chassis. This material is also employed in bridges, offshore structures, steel towers, hydraulic platforms, and construction machinery that face extreme loads and dynamic stresses. Its outstanding strength-to-weight ratio makes it a go-to choice for applications that demand both durability and efficiency.
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Latham 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 Hamilton, New Zealand.
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