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Extra Wide & Extra Long Steel Plates: Driving Innovation in Heavy Industry and Infrastructure

As industries worldwide pursue larger and more ambitious projects, the demand for extra wide and extra long steel plates is rapidly increasing. These specialized steel products provide the structural strength and flexibility required for heavy-duty construction, shipbuilding, wind energy foundations, and other large-scale industrial applications.

12M steel plate delivery - ROYAL GROUP

What Are Extra Wide & Extra Long Steel Plates?

Extra wide and extra long steel plates refer to flat-rolled steel sheets that exceed conventional dimensions. Typically, the width ranges from 2,000 mm to 3,500 mm, and the length extends from 12 m to 20 m or more, depending on project requirements. Thicknesses generally range from 6 mm to over 200 mm, offering engineers a versatile solution for large structural components.

 

Width (mm) Length (mm) Thickness (mm) Remarks
2200 8000 6 Standard wide-long plate
2500 10000 8 Customizable
2800 12000 10 Heavy-duty structural plate
3000 12000 12 Common construction steel plate
3200 15000 16 For thick plate processing
3500 18000 20 Ship/bridge applications
4000 20000 25 Extra-large engineering plate
4200 22000 30 High-strength requirement
4500 25000 35 Specially customized plate
4800 28000 40 Super-large engineering steel plate
5000 30000 50 High-end engineering project
5200 30000 60 Shipbuilding/heavy machinery
5500 30000 70 Ultra-thick plate
6000 30000 80 Extra-large steel structure
6200 30000 100 Special industrial applications

Material Options

Manufacturers offer these plates in a variety of materials to suit different engineering needs:

Carbon Steel: Common grades include Q235, ASTM A36, and S235JR, providing good weldability and toughness.

Low-Alloy High-Strength Steel: Q345B, ASTM A572, and S355J2 offer higher strength for demanding structural applications.

Shipbuilding & Pressure Vessel Steel: AH36, DH36, and A516 Gr.70 are engineered for marine and industrial environments.

Applications Across Industries

Extra wide and extra long steel plates are crucial for:

Bridge Construction – Deck plates and structural beams for large-span bridges.

Shipbuilding – Hulls, decks, and bulkheads for commercial and naval vessels.

Wind Energy – Tower bases, nacelle structures, and foundation components.

Heavy Machinery – Excavator chassis, pressure vessels, and industrial equipment.

Construction – Super high-rise buildings, industrial plants, and large-scale factories.

Advantages of Using Extra Wide & Long Steel Plates

Structural Efficiency: Fewer welds reduce weak points and improve load-bearing capacity.

Project Scalability: Large dimensions accommodate complex designs without segmentation.

Enhanced Durability: High-quality materials ensure long-term performance under heavy loads and harsh conditions.

Production & Quality Control

These steel plates are primarily hot-rolled to maintain toughness and ductility. Advanced production facilities ensure uniform thickness, straightness, and surface quality. Each batch undergoes rigorous testing to meet international standards such as ASTM, EN, and ISO.

Packaging & Logistics

Given their size, plates are carefully packaged with water-resistant tarps, rust inhibitors, and steel strapping. Transport often requires specialized flatbed vehicles or shipping solutions to ensure safe delivery to project sites worldwide.

About Royal Steel Group

As a global leader in steel solutions, Royal Steel Group supplies high-quality extra wide and extra long steel plates to meet the evolving needs of industrial and infrastructure projects. From shipbuilding to wind energy, our products help engineers and builders achieve greater efficiency, safety, and innovation.

ROYAL GROUP

Address

Kangsheng development industry zone,
Wuqing district, Tianjin city, China.

E-mail

sales01@royalsteelgroup.com

Phone

Sales Manager: +8613652091506

Hours

Monday-Sunday: 24-hour Service

Post time: Nov-27-2025