Gwangyang Marine Grade Aluminum with Certification Globally

Gwangyang Aluminum’s flagship offering, marine-grade aluminum alloy sheets, has emerged as a top-seller in the global market. Renowned for their lightweight durability, exceptional mechanical properties, and superior resistance to corrosion, these specialized aluminum plates are rapidly gaining traction across the shipbuilding sector. Leading manufacturers increasingly adopt this material to enhance vessel efficiency and longevity, leveraging its proven ability to withstand harsh marine environments while maintaining structural integrity.

Driven by the strategic expansion of the global marine economy, shipbuilding activities at international and coastal yards have sustained steady growth. This trend has significantly propelled demand for marine-grade aluminum alloys, with manufacturers like Gwangyang Aluminum experiencing accelerated growth in this sector.

In 2024, our shipyard completions and new contracts secured approximately 35% of the global market share. The shipbuilding landscape now reflects heightened industrial consolidation, with leading enterprises further expanding their dominance. Similarly, the marine aluminum supply chain has undergone marked concentration, favoring industry-leading producers.

Our marine-grade aluminum offerings—primarily 5086, 5454, 5383, and 5083 alloys—are engineered for deck and hull construction. As a mandatory requirement for maritime applications, these materials undergo rigorous certification by recognized classification societies. Key certifications include China’s CCS, the U.S.’s ABS, Japan’s KR, and Germany’s GL.

Gwangyang Aluminum specializes in 5000-series marine alloys, with our 5083 and 5086 plates earning China Classification Society approval. These certifications have solidified our position as a primary supplier to major domestic shipping operators, aligning with the industry’s stringent quality and performance standards.