Wide Steel Plates

dimensional versatility, along with their mechanical and chemical property range, makes wide plates highly suitable for use in industrial, oil & gas, petrochemical, shipbuilding, and heavy equipment sectors.

• Large Surface Coverage: These plates reduce the number of required welds in large-scale projects such as tank construction, shipbuilding, bridge construction, and massive steel structures, thus improving efficiency.
• Uniform Mechanical Properties: Due to advanced manufacturing technologies such as heavy rolling and precise temperature control, the mechanical properties remain consistent across the entire surface of the plate.
• Good Formability and Weldability: Many wide plate grades can be easily bent, cut, and welded, facilitating smoother fabrication and assembly processes.
• High Resistance to Stress and Fatigue: Special engineering grades, such as high-strength low-alloy plates, offer excellent tolerance to both static and dynamic loads.

Leading Global Manufacturers of Wide Steel Plates

Oxin Steel Co. (Iran) is one of the most advanced producers of wide steel plates in the region. Utilizing state-of-the-art heavy rolling mills and modern European equipment, Oxin manufactures high-quality plates in a variety of dimensions. A major advantage of Oxin’s products is the availability of extra-long plate lengths, meeting the requirements of large-scale industrial projects.
Oxin plates are typically available in lengths ranging from 6 to 16 meters. In some custom projects, plates up to 18 meters long have also been manufactured. This capability reduces the number of welds needed in tank construction, large industrial structures, and pipeline projects—leading to stronger final structures, lower installation costs, and improved structural integrity.
With standard widths of 2 to 4 meters and thicknesses from 6 to 150 mm, Oxin provides engineers and project managers with a wide array of options. The company adheres to international standards such as EN, ASTM, DIN, and API to ensure consistent mechanical properties and quality, making its products suitable for oil, gas, petrochemical, pressure vessel manufacturing, power plants, and heavy steel structures.
Other notable global producers of wide steel plates include:

• Dillinger Hütte (Germany): With over 300 years of experience, a pioneer in the production of heavy and wide plates for ultra-heavy-duty applications.
• JFE Steel (Japan): Known for advanced technology in high-quality plate production.
• POSCO (South Korea): A major supplier for large-scale oil and gas projects.
• NLMK Clabecq (Belgium): Specializing in structural and wear-resistant wide plate grades.

China, as one of the largest steel producers globally, dominates a significant portion of the wide plate market. Key Chinese manufacturers include:

• Wuyang Iron and Steel Co., Ltd.: The first research and production base in China for thick and wide plates, focused on industrial and energy-grade products.
• Hunan Valin Steel Co., Ltd.: A state-owned company based in Changsha producing heavy and wide plates for various sectors including construction, automotive, and shipbuilding.
• Jingye Group: One of the largest steel producers in China, supplying medium and heavy plates for both domestic and export markets.

Applications of Wide Steel Plates

Due to their excellent mechanical properties and dimensional coverage, wide steel plates are used in many industries, including:
Construction of large pressure vessels, such as oil and gas storage tanks
Shipbuilding and offshore platforms
Fabrication of boilers, heat exchangers, and reactors
Bridge construction and massive steel structures
Large-scale infrastructure projects and steel frame buildings