5052 5083 alloy 16 gauge aluminum sheet for boat building

  • 2025-07-17 13:52:21

5052 Aluminum Alloy

5052 aluminum alloy is a non-heat treatable alloy known for its exceptional corrosion resistance, especially against saltwater, making it a popular choice for marine environments. It has good weldability, medium strength, and excellent workability.

5083 Aluminum Alloy

5083 aluminum alloy offers superior strength compared to 5052 while maintaining comparable corrosion-resistance levels. It's specifically designed for saltwater duties and is commonly applied to ship hulls, tankers, naval vessels, and high-performance boats.

16 Gauge Aluminum Sheet Specifications

AlloyThickness (Gauge)Thickness (mm)TemperTypical Finish
505216 gauge1.5 mmH34/H36Smooth/Marine
508316 gauge1.5 mmH116/H111Smooth/Marine

Note: Thickness tolerance for 16 gauge aluminum sheet generally ranges from ±0.03 mm to ±0.06 mm depending on production standards.

Chemical Composition

Element5052 (wt%)5083 (wt%)
Aluminum (Al)RemainderRemainder
Magnesium (Mg)2.2 – 2.84.0 – 4.9
Chromium (Cr)0.15 – 0.350.05 – 0.25
Manganese (Mn)Max 0.10.4 – 1.0
Iron (Fe)Max 0.4Max 0.4
Silicon (Si)Max 0.25Max 0.4
Copper (Cu)Max 0.1 - 0.25Max 0.1
Zinc (Zn)Max 0.1Max 0.25

Mechanical Properties

Property5052-H365083-H116
Tensile Strength28,000 – 34,000 psi (193 – 235 MPa)38,500 psi (265 MPa)
Yield Strength (0.2% offset)18,000 psi (124 MPa)24,500 psi (170 MPa)
Elongation7.5%12 – 20%12%
Hardness (Brinnell)75 – 8580 – 90
Density~2.68 g/cm³~2.66 g/cm³

Features for Boat Building

  • Enhanced Corrosion Resistance: Both alloys offer exceptional resistance against saltwater and marine atmospheric corrosion.
  • Excellent Weldability: Suitable for MIG, TIG, and resistance welding; minimal post-weld heat treatment necessary.
  • Good Formability: Easy to shape and contour for custom boat hull designs.
  • Lightweight: Aluminum sheets significantly reduce overall boat weight, improving speed and fuel efficiency.
  • Durability: Higher fatigue and impact resistance especially in 5083, ideal for rough marine conditions.
  • Low Maintenance: Resistant to rust and corrosion decreases long-term maintenance costs.

Applications in Boat Building

ApplicationPreferred AlloyBenefits
Hull planking and bottom sheets5083High strength, durability against impact and fatigue
Superstructure and decks5052Easier forming, weight saving, aesthetic finish
Fuel, water, and storage tanks5052Superior corrosion resistance, easy weldability
Small pleasure boats and canoes5052Lightweight and corrodes minimally
Paneling and fittings5052 and 5083Custom shapes and strong assemblies
Characteristic50525083
Corrosion ResistanceExcellent, especially saltwaterExcellent, ideal for marine saltwater
StrengthMediumHigh
WeldabilityVery goodVery good
CostLowerHigher
Common Marine UsesSmall boats, tanks, superstructuresLarge vessels, hulls, longitudinal framing
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Lucy

5052 Aluminum Alloy5052 aluminum alloy is a non-heat treatable alloy known for its exceptional corrosion resistance, especially against saltwater, making it a popular choice for marine environments.

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