Marine Grade Plate Aluminum Sheet 5083 O H116

  • 2025-07-02 16:00:31

When it comes to marine construction and offshore applications, selecting the right material is crucial. Marine Grade Aluminum Plate 5083 O H116 stands out as a top-tier solution, blending excellent mechanical properties, corrosion resistance, and ease of fabrication.

Marine Aluminum Plate 5083

Alloy 5083 is a non-heat-treatable aluminum-magnesium alloy classified under the 5xxx series. Recognized for exceptional corrosion resistance—particularly in seawater—and robust mechanical performance, it's one of the most favored alloys in marine engineering. The “O” temper indicates that the metal is annealed (softened), and coupled with the “H116” designation, it informs us the product met strict control criteria to enhance mechanical properties and corrosion resistance after post-weld heat treatment.

By design, Marine Aluminum 5083 O H116 provides superior yield strength and toughness compared to other aluminum alloys (raising the bar for application in harsh, saltwater environments where longevity and safety are vital).

Functions of 5083 O H116 Marine Aluminum Sheet

  • Corrosion Resistance: The alloy contains approximately 4.0-4.9% magnesium, boosted by small amounts of manganese and chromium, forming a protective oxide layer that defends against seawater and marine atmosphere oxidation.
  • Enhanced Weldability: Excellent weldability, combined with low susceptibility to stress corrosion cracking in marine environments, makes 5083 O H116 prime for welded structures like ship hulls and offshore platforms.
  • High Strength-to-Weight Ratio: The alloy supports lightweight structural elements without compromising durability and load-bearing demands—crucial for fuel efficiency and ease of handling.
  • Good Formability: The annealed (O) condition tempered to H116 ensures flexibility required to shape complex boat and ship frames.
  • Post-Weld Mechanical Properties: The H116 temper maintains mechanical strength consistent with design parameters even after welding and subsequent environmental exposure.

Common Applications in Marine Environments

Marine aluminum 5083 O H116 is engineered for products rigorously tested and certified to endure hostile maritime conditions. Common applications include:

  • Shipbuilding: Hulls, bulkheads, and superstructures used in both recreational and commercial vessels.
  • Offshore Platforms: Structural components and cladding where chemical stability in salt-laden air is necessary.
  • Boat Decking & Railings: Lightweight and durable parts subjected to constant moisture, salt, and mechanical wear.
  • Manufacturing of Marine Tanks: Fuel or ballast tanks benefiting from corrosion and leakage resistance.
  • Cryogenic and Refrigerated Containers: Due to excellent mechanical properties at lowered temperatures.

These selective uses are dictated by the alloy’s capability to meet marine industry codes and standards.

Technical Specifications and Implementation Standards

industry parameters and quality requirements helps implement 5083 O H116 accurately.

ParameterSpecification
Alloy systemAl-Mg (Aluminum-Magnesium)
Composition (% by weight)Mg: 4.0–4.9; Mn: 0.4–1.0; Cr: 0.05–0.25; Fe ≤ 0.4; Si ≤ 0.4; Remaining Al
TemperO (Annealed), complied with H116 enhanced welding specification
DensityApprox. 2.66 g/cm³
Yield strength (Rp 0.2)~260 MPa (depending on thickness)
Tensile strength290-350 MPa
Elongation≥12% (depending on thickness and temper)
Modulus of Elasticity70 GPa
Corrosion resistanceHighly resistant to pitting and intergranular corrosion in seawater
Thermal conductivityAround 108 W/(m·K)

Standards to Note:

  • ISO 6361 — Specification for “Wrought Aluminium and Aluminium Alloy Sheets, Strips and Plates.”
  • ASTM B209 — Aluminum and Aluminum-Alloy Sheet and Plate.
  • ABS (American Bureau of Shipping) & DNV (Det Norske Veritas) certifications specifically outline performance under marine conditions.
  • AA (Aluminum Association) Designation — 5083 H116 temper.

H116 temper filtration implies post-welding mechanical strength and corrosion criteria have been tested per relevant codes, especially for application in marine structures entrusted with safety.

Chemical Properties Breakdown

ElementContent (%)
Aluminum (Al)Balance (~90.0+)
Magnesium (Mg)4.0 – 4.9
Manganese (Mn)0.4 – 1.0
Chromium (Cr)0.05 – 0.25
Iron (Fe)≤ 0.4
Silicon (Si)≤ 0.4
Copper (Cu)≤ 0.1
Zinc (Zn)≤ 0.25

The synergy of magnesium and manganese greatly improves corrosion resistance whereas chromium expands resistance in very aggressive marine atmospheres. Trace impurities are minimized to maintain structural coherence.

Marine Grade 5083 O H116 helper outperforms many metals by delivering the crucial trifecta of toughness, lightweight strength, and outstanding chloride resistance. From initial fabrication to long-term installation, the technical strengths of Marine Aluminum Plate 5083 make it the ultimate choice for reliable and efficient marine and offshore systems.

Investing in 5083 O H116 means engineering longevity, reduced maintenance, and compliance with the rigorous demands of marine industry regulators—ensuring marine operations sail smoothly for years to come.

Whether building a luxury yacht or configuring a critical offshore platform, Marine Aluminum Alloy 5083 in O H116 temper stays steadfast to keep performance and safety afloat. For technical supply and expert advice, choosing a reliable provider specializing in marine-grade plates fuels project success with confidence.

Author: Marine Aluminum Specialist | Leading supplier of premium marine aluminum solutions

Tags: Marine Aluminum, Aluminum 5083, H116 Temper, Marine Sheets, Corrosion Resistance, Shipbuilding Materials

author image
Lucy

When it comes to marine construction and offshore applications, selecting the right material is crucial. Marine Grade Aluminum Plate 5083 O H116 stands out as a top-tier solution, blending excellent mechanical properties, corrosion resistance.

Leave a Message

Related Products

Marine heavy duty aluminum plate

Marine Heavy Duty Aluminum Plates Sheets generally refer to thick aluminum alloy plates and heavy gauge sheets produced from marine-grade alloys such as 5083, 5086, 5059, and 5383.

View Details
Marine 5083 aluminum plate

Marine 5083 Aluminum Plate belongs to the 5xxx series of aluminum-magnesium alloys and is classified as a non-heat-treatable alloy. Its high magnesium content (typically 4.0–4.9%) enhances its corrosion resistance, especially against seawater-related degradation such as pitting and stress corrosion cracking.

View Details
Marine 5059 aluminum plate

Marine 5059 Aluminum Plate is distinguished by its high magnesium content and carefully balanced alloying elements, designed to maximize strength without compromising corrosion resistance.

View Details
Marine 5086 aluminum plate

5086 Aluminum Plate belongs to the 5xxx series of aluminum-magnesium alloys. Its hallmark is a high magnesium content—generally between 4.0% and 4.9%—which delivers enhanced corrosion resistance, particularly against saltwater and marine atmospheric conditions.

View Details

Related Blog

5083 marine grade aluminium plate

When it comes to marine construction and applications necessitating optimal performance in corrosive saltwater environments, 5083 marine grade aluminium plate stands out as one of the most reliable and versatile materials.

View Details
Hot Rol 5052 5083 Aluminum Plate Sheet for Boat

When it comes to marine aluminum, hot rolled 5052 and 5083 aluminum plate sheets hold a distinguished place, primarily due to their impeccable blend of strength, corrosion resistance, and formability — factors crucial for boat manufacturing.

View Details
Marine Grade Aluminum Plate 5083

When it comes to building robust, durable, and corrosion-resistant marine vessels and offshore structures, Marine Grade Aluminum Plate 5083 stands as a premier choice in the industry.

View Details