Properties of Aluminium: The Best Alloys for Extrusion


There are many aluminium alloys and each one of them has unique properties that make it special. The type of alloy you choose depends on the effect you want to achieve. Aluminium has plenty of attractive properties but there are times when you need to supplement them with another metal. The use of alloys may be great in increasing strength, durability, and corrosion-resistance of aluminium. The type of alloy you choose should match the needs of your application. Basic aluminium billets may not be as impressive as aluminium alloys.

Most alloys contain at least 90% of aluminium so you won’t lose the attractive properties such as lightweight, strength, and durability. Some of the best alloys include 6005, 6463, and 6063. If you hire the right aluminium extrusion company such as Edmo, the technicians will help you determine the alloy that is best for your needs. The best alloys include the following;

Aluminium Alloy 6005

This alloy is needed or applications that demand strength and durability. It is also great for applications that require high resistance to corrosion. Alloy 6005 has some silicon concentration which helps to reduce its melting temperature and make it better suited for extrusion. It is strong and easy to machine. The alloy is used in ladder structures, structural applications, connector stock for the automotive industry, and when making tubing for handrails.

The alloy bends more easily than other alloys so it may not be appropriate for applications that are subject to impact.

Aluminium Alloy 6463

This alloy is made with 98% raw aluminium and small percentages of zinc, iron, copper, and silicon. It is used in applications that require strength because of its high density and yield strength. The alloy is heat treated to reduce its ductility and increase strength. It is mostly used in the construction industry. It may be used for making wire, rods, and bars.

Aluminium Alloy 6063

This is one of the most popular aluminium alloys. It is used on applications that demand a high-quality finish and resistance to corrosion. It may be used on structural pipes, sinks, and furniture.

Another desirable property of this alloy is its electrical conductivity. It is, therefore, suitable for electrical applications. When heat-treated, it can resist stress corrosion cracking.

Its beautiful finishing options make it great for dipping, clear, colour, and hard coat. This application is great for both functional and decorative purposes.

Each one of the alloys has properties that make it special. Some of the things to consider before choosing the right alloy for your aluminium extrusion needs include; its behavior during extrusion and finishing. Aluminium is a great metal but the additional elements may help improve corrosion resistance, strength, and good looks.

Regardless of the aluminium alloy you choose for your extrusion needs, always get your services from a reputable extrusion company. They should be able to understand the needs of your application and provide you with creative customized solutions. Always ask an expert if you are unsure of the right alloy for you.

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