Made from an aluminum-magnesium alloy, the 5086 medium-gauge aluminum plate is a sturdy substance that resists rust. Ship design requires strategic measures to improve safety and performance because marine environments are complex and dynamic. The 5086 medium-gauge aluminum plate from GNEE Aluminum is perfect for gunwale applications because of its remarkable corrosion resistance, excellent weldability, and moderate strength. Designed for ship hull bottoms, this aluminum plate protects ships from corrosion and reduces the weight of the hull, which in turn lowers engine capacity, increases speed, uses less fuel, and maximizes fuel efficiency.

Why is 5086 aluminum plate commonly used for ship bottom hull applications?
Because of its exceptional welding performance, high strength, and resistance to corrosion in seawater, 5086 aluminum plate finds extensive use in marine engineering. Medium-thick plates give ship bottom hulls the structural strength they need to resist impact and hydrostatic pressure while still being lighter than steel.
What thickness range of 5086 aluminum plate is suitable for ship bottom hulls?
Depending on the type and design of the vessel, medium-thick 5086 aluminum plates with a thickness of 6 to 30 mm are usually needed for shipbuilding. Smaller boats or less stressed areas of the hull can use thinner plates, while larger vessels or areas needing more structural support use thicker plates.
Specification of 5086 Medium-Thick Aluminum Plate for Ship Bottom Shell
| Alloy | 5086 |
| Temper | O, H111, H112, H116, H321 |
| Thickness (mm) | 1.50-120 |
| Width (mm) | ≤3100 |
| Length (mm) | 1000-16000 |
| Package | Export packaging (protective film, interleaved paper) |
| Certificate | CCS, DNV, ABS, BV |
Chemical Composition
| Alloy | Si | Fe | Cu | Mn | Mg | Cr | Ni | Zn | Ti | Zr | AL |
| 5086 | 0.40 | 0.50 | 0.10 | 0.20-0.70 | 3.50-4.50 | 0.05-0.25 | – | 0.25 | 0.15 | – | Remainder |
Mechanical Properties
| Alloy | Temper | Tensile strength Rm(Mpa) | Yield strength Rp0.2(MPa) | Elongation A(%) |
| 5086 | O/H111 | 204-305 | ≥95 | ≥16 |
| H112 | ≥250 | ≥125 | ≥8 | |
| H116 | ≥275 | ≥195 | ≥10 |








