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Marine Grade Aluminum Sheet and Plate Background
Marine Grade Aluminum Sheet and Plate

Marine Grade Aluminum Sheet and Plate

Precision-engineered 5000 and 6000 series alloys delivering superior corrosion resistance and 15-40% weight reduction for marine vessels and offshore platforms.

Primary Alloys:
5052, 5083, 5086, 5454, 5754, 6061, etc
Regular Size:
4'x8', 4'x10', 5'x10',1200 mm x 2440 mm,1200 mm x 3000 mm
Regular Thickness(mm):
2, 2.5, 3, 3.5, 4, 5, 6, 10, 30
Regular Width:
2m, 2.5m
Regular Length:
6m
Corrosion Rate:
0.02-0.03 mm/year
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What is Marine Aluminum

Overview & Properties

Marine Aluminum Alloy

5052,5083,5086,5454,5754

Aluminum in Hull Components

5052/5083/5086/5454/5754

Surface Treatments

Anodizing, epoxy Coating, sacrificial anode

Process Adaptability

Bending, drawing, preheating, welding

Specialty Panels

Ultra-wide, honeycomb Panel,tread Plate

Certifications & Processing

DNV,LR,BV,

Marine FAQ

Common Questions

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What is Marine Grade Aluminum?

Specialized alloys combining ultra-lightweight properties with superior corrosion resistance, proven through >3,000-hour salt spray testing.

5000 and 6000 Series aluminum know as marine grade aluminum,such as 5052, 5083, 5086, 5454, 5754, 6061,etc, provide the ultimate solution for shipbuilding, offering superior seawater corrosion resistance and weight reduction. Key characteristics include:

  • Self-repairing oxide layer forming 4nm film upon air exposure
  • Density of 2.7 g/cm³ (1/3 that of steel), reducing hull weight by 15-40%
  • Excellent cryogenic toughness (>12% elongation at -196°C)
  • Process adaptability for welding, bending, and machining

Main Alloy Selection Guide

Performance-validated alloys with detailed specifications and proven economic benefits for marine engineering.

5083-H116 Aluminum Sheet and Plate

5083-H116 Aluminum Sheet and Plate

Strength Properties:Tensile 317 MPa | Yield 230 MPa
Corrosion Resistance:⭐⭐⭐⭐⭐
Applications:Hull plates, submarine shells, LNG tanks
Economic Benefits:Minimal maintenance costs; 30% lighter than steel
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5083-H116 Aluminum Sheet and Plate

5083-H116 Aluminum Sheet and Plate

5086-H32 Aluminum Sheet and Plate

5086-H32 Aluminum Sheet and Plate

5052-H32 Aluminum Sheet and Plate

5052-H32 Aluminum Sheet and Plate

6061-T6 Aluminum Sheet and Plate

6061-T6 Aluminum Sheet and Plate

5454-H32 Aluminum Sheet and Plate

5454-H32 Aluminum Sheet and Plate

5456-H321 Aluminum Sheet and Plate

5456-H321 Aluminum Sheet and Plate

5754-O Aluminum Sheet and Plate

5754-O Aluminum Sheet and Plate

Any Questions? Contact our specialists

Marine Aluminum Applications by Hull Components

Engineering-grade specification matrix detailing optimal alloy selection, temper designations, and product forms for critical marine structural applications with performance validation

ApplicationAlloyProduct Type
Hull plating5083-H116, 5086-H32Sheet and plate
Superstructure5083-H116, 5086-H32, 6061-T6Sheet, plate, and extrusions
Deck plating5083-H116, 5086-H32Sheet and plate
Bulkheads5083-H116, 5086-H32, 5052-H32Sheet and plate
Frames and stiffeners6061-T6, 6082-T6Extrusions
Masts and rigging6061-T6, 6082-T6Extrusions and forgings
Fuel and ballast tanks5052-H32, 5454-H32Sheet and plate
Piping systems6061-T6, 5083-OPipe and tube
Propeller shafts6061-T6, 2024-T4Forgings and bar
Rudders and control surfaces5083-H116, 6061-T6Plate and extrusions
Windows and hatches6061-T6, 6063-T5Extrusions
Ladders and railings6061-T6, 6082-T6Extrusions and tube

Key Selection Criteria

Structural Components

  • •5083-H116: Primary choice for hull plating and critical structural elements requiring maximum corrosion resistance
  • •6061-T6: Ideal for frames, masts, and components requiring high strength-to-weight ratio

Specialized Applications

  • •5052-H32: Cost-effective solution for fuel tanks and non-critical bulkheads
  • •6063-T5: Excellent for architectural elements like windows and decorative features

Surface Treatments & Anti-Corrosion Tech

State-of-the-art surface engineering solutions featuring electrochemical anodizing, high-performance epoxy systems, and cathodic protection for maximum marine durability

Anodizing

  • Mechanism: Electrochemically thickens oxide layer (5–200 μm Al₂O₃)
  • Applications: 5000/6000 alloys for hull plates, aerospace parts
  • Benefits: ↑50% corrosion resistance; hardness HV 300–500

Epoxy Coating

  • Mechanism: Physically blocks corrosive media
  • Applications: Below-waterline zones, chemical tanks
  • Benefits: >5,000 hrs salt spray resistance; high adhesion

Sacrificial Anode

  • Mechanism: Electrochemical protection (anode corrodes preferentially)
  • Applications: Seawater pipelines, hull exteriors
  • Benefits: >80% corrosion inhibition; self-repairing

Process Adaptability

Advanced fabrication techniques and processing capabilities for marine aluminum applications

Process Adaptability

  • TIG Welding: Heat input ≤1.5 kJ/mm, strength retention >90% (5083/5086 + ER5356 filler)
  • Cold Bending: 5052-O temper, bend radius ≤2× plate thickness
  • Deep Drawing: 5052-H32/H34 excellent formability performance
  • Preheating: Plates >8mm require 80-120°C preheating
  • Surface Prep: Chemical cleaning/stainless brushes (no grinding wheels)
Process Adaptability Welding background

Specialty Panels & Innovative Applications

Advanced composite structures and ultra-wide panels with honeycomb cores for extreme marine applications.

Ultra-Wide Aluminum Plate

Ultra-Wide Aluminum Plate

Extra-wide aluminum plates designed for large-scale marine construction, reducing welding requirements and enhancing structural integrity.

Technical Specifications

  • •
    Dimensions:Width 2,650–3,000 mm (max 3.1 m); thickness 0.15–500 mm
  • •
    Alloys:5000/6000 series
  • •
    Benefits:↓70% welds (enhances airtightness); high strength (276–343 MPa)

Applications

Hull shells, LNG tank walls (tolerance ±0.02 mm)

Detail Contact us
Ultra-Wide Aluminum Plate

Ultra-Wide Aluminum Plate

Aluminum Honeycomb Panel

Aluminum Honeycomb Panel

Anti-Slip Tread Plate

Anti-Slip Tread Plate

Aluminum Foam Panel

Aluminum Foam Panel

Need custom solutions? Contact our specialists

Certifications & Processing Capabilities

Internationally-certified quality systems with DNV, LR, BV, ABS, and CCS approvals, featuring precision welding technologies, advanced forming capabilities, and comprehensive traceability for mission-critical marine components

International Certifications

Globally recognized quality standards

Marine Classification Societies

  • DNV (Norway): Det Norske Veritas approved
  • CCS (China): China Classification Society certified
  • LR (UK): Lloyd's Register approved
  • NK (Japan): Nippon Kaiji Kyokai certified

Quality Assurance

  • ASTM B209: Aluminum sheet standard
  • ASTM B928: High magnesium alloy standard
  • EN 485-2: European aluminum standard
  • ISO 9001: Quality management system

Advanced Processing Technologies

State-of-the-art manufacturing capabilities

Welding Technologies

Friction Stir Welding
95% strength retention, no distortion
TIG/MIG Welding
Automated systems, consistent quality

Precision Machining

CNC Machining
±0.1 mm precision tolerance
Laser Cutting
±0.2mm accuracy, smooth edges

Anti-Corrosion Design Rules

Comprehensive protection strategies

Galvanic Corrosion Control

  • Avoid direct Cu/stainless steel contact (insulate if voltage >0.15 V)
  • Use Al-Zn-In-Mg-Ti anodes for hulls (>80% efficiency)
  • Implement proper electrical isolation systems

Weld Zone Protection

  • 5083-H116 resists intergranular corrosion via heat treatment (500–540°C)
  • Cold rolling process (7–12%) for enhanced protection
  • Post-weld stress relief and surface treatment

Marine Aluminum FAQ

Expert answers to common questions about marine-grade aluminum specifications, applications, and performance characteristics

Ready to Get Started?

Contact our marine aluminum specialists for technical consultation and custom solutions. We provide comprehensive support from material selection to final delivery.

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