Aluminum Alloy Plate 5083 H24 for Marine

  • 2025-05-23 15:26:26

Overview

Aluminum Alloy Plate 5083 H24 is a high-performance material widely favored in marine engineering due to its excellent combination of high strength, exceptional corrosion resistance, and good weldability. It belongs to the non-heat-treatable 5xxx series aluminum alloys primarily alloyed with magnesium, known for durability in harsh environments, including seawater and industrial chemical atmospheres.

Chemical Composition of Aluminum Alloy 5083 (Typical % wt.)

ElementMg (%)Mn (%)Cr (%)Fe (%)Si (%)Zn (%)Cu (%)Ti (%)Al (Balance)
Content4.0–4.90.4–1.00.05–0.25≤0.4≤0.4≤0.25≤0.1≤0.15Remainder

Mechanical Properties of Aluminum Alloy 5083 H24

PropertyValueTest Method
Tensile Strength (Rm)265–310 MPaASTM B209
Yield Strength (Rp0.2)145–190 MPaASTM B209
Elongation (A)Minimum 10%ASTM B209
Hardness (Brinell)Approx. 75 HBASTM E10
Density2.66 g/cm³

Note: The H24 temper designation implies that material is strain-hardened and partially annealed, which balances strength and workability.

Features of Aluminum Alloy Plate 5083 H24

1. Outstanding Corrosion Resistance

Plate 5083 H24 exhibits excellent resistance to seawater and marine atmospheres. Its high magnesium content forms a protective oxide layer minimizing galvanic corrosion, making it suitable for saltwater environments.

2. Superior Strength-to-Weight Ratio

With a tensile strength near 300 MPa, Aluminum 5083 offers enhanced mechanical strength compared to many other non-heat-treatable aluminum alloys without sacrificing weight advantages. This enables lightweight yet structurally robust designs.

3. Good Weldability and Fabrication Properties

Though strain-hardened (H24 temper), the material maintains reasonable formability. It is compatible with most brazing, TIG, and MIG welding processes. This flexibility supports complex ship and boat manufacturing techniques.

4. Excellent Fatigue Resistance

It's known for good fatigue life, critical for continuously vibration and load-bearing marine applications.

5. Saltwater Resistance and Safety

The alloy avoids toxic contamination, so it supports eco-friendly marine operations including potable water tanks and fishing vessels.

Common Applications in Marine Industry

  • Hull Construction: Used in ship, boat, and yacht hulls that require corrosion-resistant structural materials ensuring durability and longevity.
  • Decks & Cruises: Ideal choice for decks and cabin floors due to damage resistance and aesthetic appeal.
  • Superstructures: Enables lightweight and corrosion-resistant superconstruction parts, enhancing vessel stability and performance.
  • Corrosion-Resistant Piping: Ideal for saline or chemical industrial piping applications on offshore platforms.
  • Storage Tanks: Common also in freshwater and saltwater tanks on marine vessels for storage without corrosion risk.
  • Marine Fittings: Used in hardware, steps, railings, and fittings exposed to constant marine atmospheres.

Comparison Table: Aluminum Alloy 5083 H24 vs Common Marine Aluminum Alloys

Property/Feature5083 H246061 T65A06 & 5A09 Series
Magnesium Content4.0–4.9 %0.8–1.2 %~5.0+ %
Tensile Strength (MPa)265–310280–310~270–320
Corrosion ResistanceExcellent (Saltwater environment)Good but less than 5083Good
WeldabilityVery goodExcellentGood
FormabilityModerate (due to H24 temper)Very GoodGood
Fatigue ResistanceHighModerateModerate

Aluminum Alloy Plate 5083 H24 is a premium material challengeably suited for the marine manufacturing and repair industries. Its robust corrosion resistance combined with structural strength makes it an optimal choice for boat hulls, decks, tanks, and other components regularly exposed to aggressive aquatic environments. The alloy supports fabrication flexibility without compromising long-term performance, attaining a valuable balance among strength, corrosion resistance, and workability.

When considering marine-grade aluminum alloys, 5083 H24 stands out not just as an industry-standard but a tried-and-tested material driving durable, safe, and lightweight marine vessels worldwide.

If your marine engineering projects prioritize durability in harsh, corrosive waters, Aluminum Alloy Plate 5083 H24 should be a primary candidate. For inquiries, custom cutting, or further technical details on Aluminum 5083 plate specifications, please contact our technical support team or visit our product catalog.

Note: All mechanical designs and usage must respect specific code and class approval as applicable for maritime vessels in different jurisdictions.

author image
Lucy

OverviewAluminum Alloy Plate 5083 H24 is a high-performance material widely favored in marine engineering due to its excellent combination of high strength, exceptional corrosion resistance, and good weldability.

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 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
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

Related Blog

Aluminum Alloy Plate 5083 H24 for Marine

OverviewAluminum Alloy Plate 5083 H24 is a high-performance material widely favored in marine engineering due to its excellent combination of high strength, exceptional corrosion resistance, and good weldability.

View Details