5083-H111 and 5083-H321 are both suitable for marine-grade applications, but the specific choice should be determined based on the specific application requirements. H111 focuses more on workability and formability, while H321 emphasizes strength and fatigue life.
The 5083-H321 aluminum plate is a high-strength aluminum alloy specifically designed for marine-grade applications. It offers excellent performance, particularly suited for harsh marine environments and other demanding applications.