With the growing demand for lightweight and corrosion-resistant materials in the shipbuilding industry, aluminum alloys have become an essential component in modern ship manufacturing. Among them, marine aluminum flanges are widely used in marine engineering, ship pipeline connections, hull structures, portholes, masts, gangways, and other fields due to their lightweight, excellent corrosion resistance, and superior processing performance.

Why Choose MC Aluminum’s Marine Aluminum Flanges?

Our aluminum flange products comply with international maritime standards, including DNV-GL (Norwegian Classification Society), ABS (American Bureau of Shipping), CCS (China Classification Society), and LR (Lloyd’s Register, UK), ensuring the highest quality and safety standards.

Marine Aluminum Flange Alloy Introduction

• 5083 Aluminum Flange: With a high magnesium content (4.0%-4.9%), 5083 aluminum flange offers excellent corrosion resistance and hardness, making it particularly suitable for marine environments. It is commonly used in ships, vessels, vehicle components, and chemical liquid pressure vessels.

• 6061 Aluminum Flange: Known for its good mechanical properties and corrosion resistance, 6061 aluminum flange is used in various industries, including petroleum, chemical, power plants, urban pipeline networks, and shipbuilding.

• 6063 Aluminum Flange: Renowned for its good formability and corrosion resistance, 6063 aluminum flange is widely applied in shipbuilding and other high-corrosion environments.

Key Features of Marine-Grade Aluminum Flanges

1.Lightweight Design: Reduces the overall weight of the ship, enhances speed, and lowers fuel consumption, aligning with green energy trends.

2.Superior Corrosion Resistance: 5083, 6061, and 6063 aluminum alloys contain anti-corrosion elements, extending service life and reducing maintenance costs.

3.High Strength & Mechanical Properties: Although aluminum flanges have lower strength than steel, their strength-to-weight ratio is higher. The addition of copper, magnesium, and manganese further enhances their strength through heat treatment.

4.Excellent Weldability & Machinability: Aluminum flanges can be easily welded using various welding techniques, ensuring high sealing performance. Their good machinability guarantees high precision and stability in shipbuilding applications.

5.Compliance with International Standards: Certified by multiple international classification societies, ensuring quality, safety, and reliability.

Typical Applications of Aluminum Flanges in Shipbuilding

1.Ship Pipeline Systems

Used in fuel pipelines, seawater pipelines, and exhaust pipelines to ensure secure and corrosion-resistant connections.

5083 aluminum flanges are particularly suitable for seawater cooling systems, effectively preventing leakage caused by long-term seawater exposure.

2.Hull Structures & Support Components

6061 aluminum flanges are widely used in ship frames and support structures, offering high strength to withstand heavy loads and improve ship stability.

6063 aluminum flanges are ideal for lightweight boats and yachts, reducing structural weight and improving fuel efficiency.

3.Marine Engineering & Floating Structures

Used in Floating Production Storage and Offloading (FPSO) units, drilling platforms, and subsea pipeline connections to ensure stability and safety in offshore structures.

5083 aluminum flanges maintain excellent performance in harsh marine environments, minimizing the need for frequent replacements and reducing maintenance costs.

How Much Does Marine Aluminum Flange Cost per Ton?

The price of aluminum flanges varies depending on the manufacturer. MC Aluminum’s pricing system includes the aluminum ingot price on the shipping date, processing fees, and shipping costs. Since aluminum ingot prices fluctuate daily, quotes may vary accordingly.

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