What grade of aluminium is marine grade?

Marine grade aluminum refers to aluminum alloys that are specifically designed for use in marine environments, where exposure to saltwater, humidity, and harsh weather conditions can cause corrosion and degradation. The most common marine grade aluminum alloy is 5083, which is a non-heat treatable alloy that has excellent corrosion resistance, high strength, and good weldability.

Other aluminum alloys that are commonly used in marine applications include 5052, 5086, 5454, and 6061. These alloys also offer good corrosion resistance and strength, but their specific properties may vary depending on the intended use and application.

It's important to note that while marine grade aluminum alloys are designed to resist corrosion in harsh environments, they still require proper maintenance and care to ensure their longevity and performance.

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