Marine 5083 5086 H116 Checkered Aluminum Plate for Deck Board

Marine-grade aluminum alloys have become the material of choice for decking and structural applications on vessels, fight corrosion challenges in saltwater environments, while maintaining superior strength-to-weight ratios. Among these, the Marine 5083 and 5086 aluminum alloys tempered to H116 with a checkered pattern are industry benchmark materials used extensively for ship deck boards, docks, offshore platforms, and other marine structures requiring reliable performance.

What is Marine 5083/5086 H116 Checkered Aluminum Plate?

Alloy Designation: 5083, 5086 (Al-Mg series)

These two alloys belong to the highly corrosion-resistant, non-heat-treatable family of aluminum-magnesium alloys. Both 5083 and 5086 provide an excellent combination of strength, ductility, welding ability, and marine corrosion resistance, making them ideal for harsh marine environments.

Temper: H116

The H116 temper signifies a strain-hardened, stabilized state with very specific conditions optimized to improve stress corrosion cracking resistance while maintaining mechanical strength. It is the stipulated temper for marine-grade aluminium plates intended for hostile environmental exposure.

Product Form: Checkered Plate

The aluminum plate is hot rolled then configured with a raised diamond or checkered tread pattern. This patterned surface provides enhanced anti-slip characteristics, critical for decking to maintain footing safety in wet and slick conditions encountered on ship decks or offshore facilities.

Chemical Composition

Mechanical Properties (Typical for H116 Temper)

Features and Benefits

• High Corrosion Resistance: Both 5083 and 5086 alloys display outstanding resistance to seawater corrosion, including pitting and stress corrosion cracking, a critical factor in marine atmospheres.
• Excellent Mechanical Strength: The alloys maintain a favorable yield and tensile strength that withstand heavy loads and mechanical impact on ship floors.
• Superior Anti-slip Design: The raised checkered pattern imparts safety to wet deck surfaces without sacrificing durability.
• Weldability: Excellent weld strength and compatibility with multiple welding methods (MIG, TIG), allowing fabricators to construct customized layouts.
• Lightweight: Weighing considerably less than steel alternatives, helping reduce vessel weight and improve fuel efficiency.
• Heat and UV Resistance: Retains properties over a broad temperature range and resists degradation by constant ultraviolet exposure.

Implementation and Industry Standards

The plates are offered with full proprietary certifications in chemical and mechanical testing, including thickness check, flatness tolerances, protein-level corrosion tests, and crack determination.

Applications

• Ship & Boat Decks: Enhanced grip and structural strength for passenger and working decks on ferries, yachts, fishing boats, and commercial ships.
• Offshore Platforms: Structural paneling and anti-skid walkways in oil rigs and marine construction.
• Marine Hydraulic Equipment Manufacturing: Durable bases or platforms requiring corrosion-robust surfaces.
• Floating Docks & Pontoons: Ruftop decks or passageways able to withstand prolonged saltwater contact with minimal upkeep.
• Coastal Infrastructure: Bridge walkways, piers, and marina surfaces needing corrosion ideology compliance.

Installation Suggestions and Handling Tips

• Maintain surface cleanliness free of dirt, salt, or coatings detrimental to weld quality.
• Use approved fabrication and joining techniques per AWS and ASTM requirements.
• Avoid overworking or bending which can lead to micro-cracking and reduced corrosion resistance.
• When coating or painting, properly etch and prime according to marine-grade procedures to extend lifespan.
• Store flat and dry to prevent surface oxidation before installation.