Marine & Offshore Aluminium Solution

Marine & Offshore Aluminium Plate Solutions for Shipbuilding and Marine Engineering

Corrosion-resistant aluminium plates and sheets for marine structures, offshore equipment, boat parts, and coastal engineering applications.

Marine and offshore applications face long-term exposure to humidity, saltwater, and corrosive environments. Materials must offer corrosion resistance, weldability, structural stability, and reliable service life.

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Why Shipbuilders Choose Chongqing West Aluminium

Seawater Resistant

Suitable for long-term exposure to marine environments.

High Strength-to-Weight Ratio

Reduce vessel weight and improve fuel efficiency.

Excellent Weldability

Suitable for hull structures and marine fabrication.

Stable Plate Flatness

Reduce deformation during welding and processing.

Large Size Plate Availability

Support shipbuilding and offshore engineering projects.

Reliable Delivery

Support long-term marine construction projects.

Common Challenges in Marine Aluminium Procurement

Corrosion in Saltwater Environments

Poor corrosion resistance leads to short service life.

Welding Distortion Problems

Poor flatness and weldability cause rework and delays.

Inconsistent Material Quality

Chemical and mechanical variations affect safety.

Delayed Project Delivery

Unstable supply chain impacts construction schedules.

Missing Inspection Documentation

Incomplete reports increase project risk.

How West Aluminium
Solves These Problems

Marine-grade alloys with excellent corrosion resistance.

Strict plate flatness control and excellent weldability.

Advanced production and inspection to ensure consistency.

Strong production capacity and stable raw material supply.

Complete MTC, inspection reports and third-party support.

Aerospace Aluminum Plate Specifications

AlloyTemperThickness (mm)Width (mm)Length (mm)StandardCertification
5083H111 / H116 / H3213 – 2001000 – 28002000 – 12000ASTM B209 / EN 485MTC, ISO 9001
5086H111 / H1163 – 1501000 – 25002000 – 12000ASTM B209 / EN 485MTC, ISO 9001
5454H1113 – 1201000 – 25002000 – 8000ASTM B209 / EN 485MTC, ISO 9001
5754H1112 – 1001000 – 25002000 – 8000ASTM B209 / EN 485MTC, ISO 9001
5383H116 / H3214 – 1001000 – 25002000 – 10000ASTM B928 / EN 485MTC, ISO 9001
5059H3216 – 1001000 – 25002000 – 10000ASTM B928MTC, ISO 9001
6082T6 / T6516 – 2001000 – 25002000 – 12000EN 573 / EN 485MTC, ISO 9001
6061T6 / T6516 – 1501000 – 25002000 – 12000ASTM B209 / ASTM B221MTC, ISO 9001

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RECOMMENDED ALLOYSUITABLE APPLICATIONSKEY ADVANTAGES
5083Marine plates, ship parts, offshore structuresExcellent corrosion resistance and marine performance
5086Marine and offshore componentsGood corrosion resistance and weldability
6061Marine equipment frames and machined partsBalanced strength, machinability, and corrosion resistance
6082Structural marine componentsHigher strength and good processing performance

Application

Marine structural panels

Boat and vessel components

Offshore equipment frames

Marine hardware parts

Deck structures

Coastal engineering components

Welded marine structures

Material Requirements

Excellent corrosion resistance

Good weldability

Stable strength

Long service life

Good surface quality

Low maintenance requirement

Suitable performance in humid and saltwater environments

Chongqing West Aluminium Metallic Material provides marine-grade aluminum solutions for boat parts, offshore structures, marine equipment housings, and coastal engineering components. We recommend suitable alloys such as 5083, 5086, 6061, and 6082 based on strength, corrosion resistance, welding requirements, and final working environment. 


In addition, we can provide our clients with certifications from classification societies such as DNV, ABS, and LR.

Recommended Alloys

Quality Control

Chemical composition inspection

Mechanical property testing

Tensile strength testing

Hardness testing

Thickness inspection

Flatness inspection

Surface inspection

Ultrasonic testing available upon request

Material test certificate

Batch traceability

Certifications

ISO 9001 丨 AS9100D 丨 ISO 14001:2015 丨 ASTM / EN standards available upon request 丨 Material test certificate available for each batch

We are not just an aluminium supplier. We are a source manufacturer helping industrial customers select the right aluminium materials for aerospace, marine, automotive, motorcycle parts, precision electronics, and high-strength structural applications.

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Material Requirement

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FAQ

5083-H116 and 5083-H321 are among the most widely used marine-grade alloys because of their excellent corrosion resistance, high strength, and proven performance in ship hulls and marine structures.

Yes. Mill Test Certificates including chemical composition and mechanical properties can be supplied with each shipment.

Yes. Each batch can be traced from raw material sourcing through production and final inspection records.

5083 contains higher magnesium content, providing significantly better corrosion resistance and mechanical performance in seawater environments.

Lead time depends on alloy, dimensions, quantity, and processing requirements. Stocked materials may be delivered more quickly.

5083-H116 is generally considered one of the best choices for welded marine structures.

Marine aluminium plates are available in a wide range of thicknesses, widths, and lengths. Custom dimensions can also be supplied.

To provide an accurate quotation, we typically require:

  • Alloy
  • Temper
  • Thickness
  • Width and Length
  • Quantity
  • Application