Latham Steel is a trusted manufacturer and supplier based in Hamilton, New Zealand, specializing in high-strength Q and T 700 sheets and plates designed for tough load-bearing and structural tasks. Q and T 700 stands for quenched and tempered steel, boasting a minimum yield strength of about 700 MPa, which ensures remarkable toughness, hardness, and resistance to fatigue. Crafted under rigorous quality standards, these plates offer excellent dimensional stability, outstanding mechanical performance, and a long lifespan. They’re commonly found in industrial equipment, construction machinery, transportation structures, and heavy-duty fabrication projects where lightweight yet incredibly durable materials are vital for safe and efficient operations.
Q and T 700 steel is characterized by its low carbon content, enhanced with alloying elements like manganese, chromium, nickel, and molybdenum to boost hardenability and strength. Thanks to the quenching and tempering process, this steel achieves a minimum yield strength of around 700 MPa, along with impressive tensile strength and exceptional impact toughness. It features a refined martensitic microstructure that ensures uniform hardness and strong resistance to brittle fracture. Despite its high strength, Q and T 700 remains weldable when proper heat control is maintained. These well-balanced mechanical properties make it ideal for heavy-load, fatigue-sensitive, and precision-fabricated components.
| Standard | ASTM A514/A514M-13 |
|---|---|
| Thickness | 5mm-150mm |
| Width | 1000mm-4500mm |
| Length | 3000mm -18000mm |
| Process | Hot Rolled (HR) |
| Delivery State | Quenched and Tempered |
| C | Si | Mn | P | S | Cu | Ni | Cr | Mo | B |
| 0.20 max % | 0.60 max % | 1.60 max % | 0.020 max % | 0.010 max % | 0.30 max % | 2.0 max % | 0.70 max % | 0.70 max % | 0.005 max % |
| Thickness mm | Yield strength Rp 0.2, min MPa | Tensile strength RmMPa | Elongation A5 min % | Typical hardness HBW |
| 4 – 53 | 700 | 780 – 930 | 14 | 260 – 310 |
| (53) – 100 | 650 | 780 – 930 | 14 | 260 – 310 |
| (100) – 160 | 650 | 710 – 900 | 14 | 240 – 290 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Latham Steel is a major manufacturer and a supplier of premium Q and T 700 Sheet and Plates in Hamilton, the New Zealand. With specialization in steel solutions, we offer a variety of products including carbon steel, alloy steel, light steel and galvanized steel. Our wide bearing has pipes, pipes, flanges, pipe fittings, forged fittings, sheets and plates. We are famous for our reliable distribution and extraordinary customer service, and are committed to offering high quality steel materials that ensure durability and better performance in different industrial applications. We are committed to skill, and we are your reliable partners for all steel requirements.
Q and T 700 sheets and plates find their place in various industries that demand ultra-strong, wear-resistant, and lightweight structural materials. Common applications include crane booms, telescopic arms, lifting platforms, construction machinery, truck chassis, heavy-duty trailers, and mining equipment. They’re also utilized in load-bearing frames, transport systems, agricultural machinery, hydraulic structures, and advanced engineering components where optimizing strength-to-weight ratio is essential.
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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