Latham Steel stands out as a top manufacturer and supplier based in Hamilton, New Zealand, specializing in ultra-high-strength S1300QL steel sheets and plates. These products are meticulously engineered for the toughest structural and load-bearing tasks. S1300QL is a quenched and tempered steel grade that excels in performance, offering maximum strength, reduced weight, and remarkable toughness. Latham Steel guarantees precise dimensions, stable mechanical properties, and strict adherence to EN 10025-6 standards. These plates are perfect for advanced engineering projects, heavy lifting systems, mining equipment, defense structures, and specialized machinery, where reliability, fatigue resistance, and high safety margins are essential in harsh working conditions.
S1300QL steel is crafted with low carbon content and a mix of alloying elements like chromium, molybdenum, nickel, and manganese, along with microalloy additions that enhance the grain structure during the quenching and tempering process. It boasts an impressive minimum yield strength of around 1300 MPa and exceptionally high tensile strength. Even with its ultra-high strength, this steel maintains good impact toughness and fatigue resistance. Controlled heat treatment results in a consistent, hard microstructure that resists brittle fracture. When welded correctly, S1300QL ensures structural stability and reliability in extreme load and high-performance scenarios.
Thickness : 3/16” (5mm) to 4” (100mm)
Width : 1500 – 3500mm
Length : 3000 – 18000mm
Grade : DILLIMAX 1300, S1300QL, EN 10025 S1300
| C | Si | Mn | P | S | Cr | Mo | Ni | V |
| 0.25 | 0.5 | 1.4 | 0.015 | 0.005 | 0.8 | 0.7 | 2.0 | 0.08 |
| Minimum yield strength R eh *) | Tensile strength R m Mpa*) | Minimum elongation at fracture A % |
| Mpa 1300 1) | 1400-1700 | 8 |
