5xxx Series Aluminium

The primary alloying element of 5xxx Series Aluminium Alloys is Magnesium, which helps to create moderate to high-strength alloys, with the highest strength of all non-heat-treatable alloys. For applications where temperatures exceed 65℃, alloys featuring no more than 3.5% Magnesium are recommended, in addition to a lower temper, to stave off stress corrosion cracking.

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They are a precipitation hardened alloy, with properties similar to 3xxx series, but with higher strength and improved corrosion resistance. In this vein, plates tempered to H116 and H321 offer excellent saline corrosion protection and are used extensively in the marine industry. Additionally, this series is easy to anodize, which offers greater corrosion resistance, as well as offering different colour options.

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As a grade regarded as “general purpose” they find themselves used in many different industries including; architecture and construction, automotive, marine, shipbuilding, bridge construction, electronics, electronics and energy.

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All alloys are readily weldable, with 5xxx Series Alloys offering the strongest weld strength of all Aluminium Alloys. They are not a grade recommended for machining, however.

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We supply all grades of 5xxx Series Alloys, so please feel free to contact us with your direct requirements.