Everything About Marine Grade Aluminum- purchase guide included

Compared to other modes of transportation, ships operate in uniquely harsh marine environments, which place much higher demands on the quality and performance of materials. In particular, marine aluminum must meet strict international standards to ensure outstanding structural stability and corrosion resistance, even under prolonged exposure to seawater and heavy loads.

The explanation of the following information can help you choose the best marine grade aluminum material for your next project. With the right choice, you will be able to build ocean giant ships, passenger and cargo cruises, or private speedboats, "floating" farther and more durable on the ocean! If you have any needs, you can contact us for more detailed explanations. Welcome contact

Marine grade aluminum - modern ocean miracle metal

The marine environment, due to its complexity - strong corrosiveness, humidity, and wind waves, has created high requirements for the quality, strength, and corrosion resistance of metals used in the marine environment. Compared to many other metals, pure aluminum has higher natural corrosion resistance, but in marine applications, continuous exposure to water and moisture requires additional protection.

When aluminum forms alloys with other metals such as magnesium, it produces a higher level of corrosion resistance and can withstand continuous contact with water and salt water. These specially treated aluminum alloys are called marine grade aluminum. Marine grade aluminum is very suitable for building marine vessels and structures, as well as the machinery and components used therein. Quick Quote

• Light weight, reduce the weight of the ship, improve the aspect ratio of the ship, reduce fuel consumption, and improve economy and environmental protection.
• Good corrosion resistance, no tendency for stress corrosion, peeling corrosion, and intergranular corrosion in seawater or marine environments.
• Good processing performance, easy to perform various processing operations such as cutting, punching, cold bending, rolling, etc.
• Good formability, wide availability of sheets, profiles, and plates, capable of manufacturing large, wide, and thin-walled profiles.
• Good welding performance, using automatic argon arc welding method, good forming, less cracks, and easy correction.

Nine maritime transportation major aluminum alloys that cannot be ignored

Premium marine aluminum products for advanced shipbuilding

Chalco marine aluminum product range is specifically engineered to meet the demanding requirements of modern ship construction. Combining superior corrosion resistance, lightweight strength, and excellent formability, these products provide reliable solutions for critical ship components from hulls to superstructures and specialized onboard systems.

Advanced deep-processed aluminum plates for marine shipbuilding development

Aluminum plates, aluminum rods, aluminum pipes, aluminum profiles, etc. are applied to various parts of the ship's hull, providing the overall shape of the ship's hull, support for the hull, and components for various applications. In addition, some deeply processed aluminum plate products also provide more support for the manufacturing of ships.

Aluminum marine grade plate

Marine aluminum plates, known for their high strength, corrosion resistance, and lightweight properties, are widely used in the construction of hulls, decks, and ship structures. Chalco marine grade aluminum plate has the CCS, DNV, NK, CCS, ABS, BV, LR, KR, etc. certifications.Quick Quote

Aluminum ultra wide plate

Ultra-wide ship plates, up to 2650mm for sheet and 3000mm for plates, reduce welding needs, enhance structural integrity, and improve aesthetics. They offer high strength, excellent corrosion resistance, and durability, ideal for shipbuilding.Quick Quote

Aluminum tread checker plate

The surface of the aluminum plate has various raised patterns such as diamond and square patterns. Usually used on ship decks, stairs, equipment, and dashboard; Not only does it have a decorative effect, but it also provides additional anti slip performance. Quick Quote

Marine aluminum foam plate

Marine foam plate has the characteristics of good fire resistance, flame retardancy, moisture-proof and dust-free. It solves the problem of traditional sound-absorbing materials being prone to moisture absorption and endangering the health of crew members. More suitable as a soundproofing material for ship cabins. Quick Quote

Aluminum alloy honeycomb plate

a composite material composed of an aluminum hexagonal honeycomb core layer. The core is sandwiched between two aluminum plates adhered on both sides. Can be manufactured into various thicknesses. It is commonly used on ship decks, gangways, outfitting boards, and other parts. Due to its honeycomb hollow structure, it can more effectively reduce the weight of the hull structure, improve the ship's load-bearing capacity and fuel efficiency. Quick Quote

Stiffened plate aluminum ribbed plates for ships

It is a reinforcing material used for ship structures. It plays a strengthening and supporting role in key areas and structures of the ship's hull. Quick Quote

Surface treatment that cannot be ignored - anodizing, coating, cathodic protection

Anodizing, coating, and cathodic protection are commonly used surface treatment methods for ship class aluminum. In addition to adding aesthetic effects to the ship, they can also effectively enhance the protective performance and enhance the corrosion resistance of aluminum.

Cathodic protection-Sacrificial Anode of Zn-Al-Cd Alloy

It is an electrochemical method to protect ship metal from corrosion by using active metals as cathodes. Aluminum, forming a protective oxide film in seawater, can serve as a cathode material to slow down corrosion.

Chalco's marine aluminum processing capabilities

Precision Cutting and CNC Machining: Utilizing state-of-the-art CNC machines and cutting tools, we deliver complex shapes and tight tolerances for hull parts, fittings, and structural components. This precision machining supports efficient assembly and superior fit in shipbuilding projects.

Bending and Forming: Our advanced bending and forming equipment enable the fabrication of complex curved profiles and frames, ensuring optimal structural strength and design flexibility. These processes maintain material integrity, critical for corrosion resistance and mechanical performance.

Welding and Fabrication: We offer professional welding solutions including TIG, MIG, and friction stir welding, suitable for joining marine aluminum alloys without compromising corrosion resistance. Our skilled welders and quality controls guarantee robust, leak-proof joints essential for ship hulls and superstructures.

Surface Preparation for Coating: Beyond processing, we prepare aluminum surfaces to ensure excellent adhesion of paints and coatings. This includes shot blasting, sanding, and cleaning, enhancing corrosion protection and aesthetic quality.

Heat Treatment: Heat treatment processes such as solution treatment and aging improve mechanical properties and stress relief, optimizing aluminum plates and profiles for demanding marine conditions.

Our integrated processing lines and quality management systems allow us to provide customized solutions, fast turnaround, and consistent quality for marine aluminum components, supporting the demanding requirements of modern shipbuilding.

Chalco - best partner for shipbuilding projects or private ship repairs

Product and delivery advantages: Chalco has its own independent production line, mold workshop, and testing laboratory. Hot selling 5052, 5083, 5383, 5086, 6061, 6063 and other 5000 and 6000 series alloys are in stock or can be customized for production

Full size profile molds: Chalco has over 2000 sets of molds with different aluminum row sizes. It can produce aluminum plates, aluminum rods, aluminum tubes, aluminum profiles, as well as marine pattern plates, honeycomb plates, foam plates and stiffened plates.

Complete certification: CCS, DNV, NK, CCS, ABS, BV, LR, KR, etc.

Chalco's marine partnerships – aluminum solutions for diverse vessel types

Chalco provides marine-grade aluminum products and processing services to a wide spectrum of shipbuilders. From small personal crafts to large commercial and military vessels, we deliver tailored aluminum solutions trusted across the global maritime industry.

Our marine aluminum serves the following vessel types:

• Private fishing boats
• Pleasure yachts and sailboats
• Passenger ferries
• Commercial cargo ships
• Offshore supply vessels
• Oil and chemical tankers
• Patrol boats and coast guard cutters
• Naval ships and military craft

With broad application expertise and proven supply capability, Chalco is your reliable partner in marine aluminum.