Marine Grade 6061 Aluminum

Temper: O,T4, T6, T651 Certifications: DNV, BV, CSS, LR

The primary alloying elements of marine grade aluminum 6061 are magnesium and silicon, and it is known for its excellent corrosion resistance and strength, making it a popular choice for a variety of marine applications.

Table of Contents
  1. Marine Grade 6061 Aluminum Features
  2. Specification of Marine Grade Aluminum 6061
  3. MechanicaProperties for Marine Grade Aluminum Plate 6061
  4. 6061 Marine Aluminum Alloys Composition
  5. Marine Grade 6061 Aluminum Applications

The primary alloying elements of marine grade aluminum 6061 are magnesium and silicon, and it is known for its excellent corrosion resistance and strength, making it a popular choice for a variety of marine applications.

Shipbuilding materials require certain strength, weldability and high corrosion resistance. 6061 marine grade aluminum plate is a very suitable shipbuilding material. It is commonly used in marine equipment such as yachts and other general purpose vessels, general structural applications, and in the construction of pressure vessels.

Marine Grade 6061 Aluminum

Marine Grade 6061 Aluminum Features

  • high strength
  • good corrosion resistance
  • good weldability
  • High toughness
  • No deformation after processing
  • Good anodizing effect

Specification of Marine Grade Aluminum 6061

The common alloy states of 6061 marine aluminum are 6061-0 (annealed), 6061 T6 (solid solution, artificial aging) and T651 (solid solution, stress relief tensile and artificial aging).

Alloy 6061aluminum
Temper O, T4, T6, T651
Thickness(mm) 0.3-600
Width(mm) 500-2600
Length(mm) 500-16000
Final Usage mast, gangway of ship

6061 aluminum plate has low density and is lighter than other materials. Therefore, the overall weight of a ship made of 6061 aluminum plates is 15%-20% lighter than a ship made of steel plates. In this way, fuel consumption will be greatly reduced and the speed will be faster.

6061 t651 aluminum plate

When a ship is exposed to the sun and wind, and is moored in the water or at sea all year round, the paint will definitely peel off. Using 6061 aluminum can reduce maintenance times. 6061 aluminum marine has good welding performance, the fallen parts can be easily welded, and safety can be guaranteed.

MechanicaProperties for Marine Grade Aluminum Plate 6061

Alloy 6061
Tensile Strength σb(Mpa) Min.310
Yield Strength σ 0.2(Mpa) Min.276
Elongation(δ5%) Min.14

6061 Marine Aluminum Alloys Composition

Alloy 6061
Si 0.4-0.8
Fe 0.7
Cu 0.15-0.40
Mn 0.15
Mg 0.8-1.2
Cr 0.04-0.35
Ni -
Zn 0.25
Ti 0.15
Ga -
Others Each 0.05
Toal 0.15

Marine Grade 6061 Aluminum Applications

Marine Grade 6061 Aluminum is widely used in the construction of different ships such as catamarans, sailboats, containers, and ship decks.

  • 1. Shipbuilding: 6061 aluminum is commonly used to build hulls, decks and other structural components. Its high strength-to-weight ratio helps create lightweight yet durable boats.
  • 2. Marine Hardware: Various marine hardware such as cleats, hatch covers and fittings are made from marine grade 6061 aluminum because of its corrosion resistance and durability.
  • 3. Mast and Rigging: Sailboat masts and rigging components benefit from the lightweight properties of 6061 aluminum, providing structural integrity without adding unnecessary weight to the vessel.
  • 4. Pontoons and Piers: Marine-grade 6061 aluminum is suitable for pontoon and pier structures because it resists the corrosive effects of salt water and other harsh marine conditions.
  • 5. Fishing equipment: Components of fishing equipment, including rod holders, frames and brackets, can be made of this aluminum alloy due to its corrosion-resistant properties.
  • 6. Marine Railings and Ladders: Handrails, ladders, and other safety features on ships often use 6061 aluminum because of its combination of strength and corrosion resistance.
  • 7. Marine platforms and walkways: Marine grade 6061 aluminum is used to construct platforms and walkways on boats, providing a strong and corrosion-resistant surface for a variety of activities.
  • 8. Underwater components: Some marine applications may involve components submerged underwater. The corrosion resistance of 6061 aluminum makes it suitable for such applications as underwater frames and brackets.

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