The 5052 marine grade aluminum sheet price is the lowest, and 5086 the highest. If you have no special requirements, 5083 is rmended, for its cost efficiency is the highest. Your Name * Your Email * Your Message * Blog. 5083 marine grade aluminum sheet metal;4.If I want to get the marine grade aluminum sheet price, what information should I let you know? 1) Product specifications (length×width×thickness); 2) Tempering and alloying. If you are not Aluminum Sheets and Bars. Made of 1000 series aluminum which is 99% pure, this aluminum offers superior formability, corrosion resistance, and electrical conductivity. It's frequently fabricated into raceways, decorative trim, and other parts where strength and hardness are not required. Easy-to-Form Marine-Grade …Marine plywood is manufactured from selected species based on density, bending strength, impact resistance and surface finishing characteristics. The highest quality grade of veneers are used in every layer and these veneers don’t have defects, eliminating core gaps when the sheet is cut.