Latham Steel, a well-respected manufacturer and supplier based in Hamilton, New Zealand, specializes in high-quality S690 QL sheets and plates. These products are crafted for situations where strength, durability, and top-notch performance are non-negotiable. S690 QL is a quenched and tempered high-strength structural steel, celebrated for its impressive toughness and reliable mechanical properties. Latham Steel guarantees outstanding dimensional accuracy, pristine surface quality, and stable mechanical characteristics, making these plates ideal for challenging engineering and construction tasks. Their impressive load-bearing capacity, lightweight nature, and excellent weldability empower industries to create efficient, safe, and high-performance structures that can withstand extreme conditions and heavy stress.
S690 QL steel is formulated with low carbon content and a mix of alloying elements like chromium, molybdenum, nickel, and manganese, which work together to deliver high strength and toughness. Thanks to the quenching and tempering process, this material achieves a minimum yield strength of 690 MPa, along with remarkable tensile strength and impact resistance, even in colder temperatures. It also boasts good weldability when handled correctly and maintains consistent hardness and a uniform microstructure. The refined grain structure of the steel helps prevent brittle fractures, while its impressive strength-to-weight ratio boosts efficiency in heavy-duty structural fabrications and load-bearing 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
| Grade | C | Si | Mn | P | S | N | B | Cr | Cu | Mo | Nb* | Ni | Ti* | V* | Zr* |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S690 QL | 0.20 | 0.80 | 1.70 | 0.025 | 0.015 | 0.015 | 0.0050 | 1.50 | 0.50 | 0.70 | 0.06 | 2.0 | 0.05 | 0.12 | 0.15 |
| Designation | Mechanical Properties (ambient temperature) | |||||||
|---|---|---|---|---|---|---|---|---|
| Steel Name | Steel Number | Min. Yield Strength Reh MPa | Tensile Strength Rm MPa | Min. % elongation after fracture | ||||
| Nominal thickness (mm) | Nominal thickness (mm) | |||||||
| ≥3 ≤50 | ≥50 ≤100 | ≥100 ≤150 | ≥3 ≤50 | ≥50 ≤100 | ≥100 ≤150 | |||
| S690 QL | 1.8931 | 690 | 650 | 630 | 770/940 | 760/930 | 710/900 | 14 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
S690 QL sheets and plates find their place in various industries that demand high structural strength while minimizing material weight. You’ll often see them in cranes, lifting equipment, heavy trailers, earthmoving machinery, and high-performance truck bodies. They’re also utilized in bridges, steel towers, offshore structures, mining equipment, and construction machinery that face extreme loads. The material’s exceptional toughness and durability make it perfect for crafting components that need to withstand significant stress and harsh conditions.
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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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