An Introduction

Aluminium and its alloys truly are the workhorse of the engineering industry. With a low density, high strength, high corrosion resistance and an unparalleled arsenal of joining, shaping and forming methods, Aluminium is as at home orbiting the Earth at 20,000Km as a component of a GPS satellite as it is at -10,000m as a material used in submersibles surveying the Mariana Trench. We have organised Aluminium into its two stock forms; Wrought and Cast, and then subdivided them into their specific Alloys to aid your selection.

Wrought Aluminium

Wrought aluminium is the name given to products finished to their usable specifications. These are subdivided into two groups: Mill Products (Pre-formed shapes of rods, bar, wire and tubular products) which are generally described as single use products, as they are essentially ''off-the-shelf' and ready to use, and Engineered Products, which are made-to-order one-off special shapes, forgings, extrusions or drawings for a specific purpose, or outside of the generally produced dimensions of Mill Products.

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Cast Aluminium

Casting Aluminium is one of the most cost effective processes for engineers requiring the characteristics and resultant benefits of Aluminium Alloys, but in a bespoke shape or form. The economies of scale really become considerable when large batches are required, as a single mould or die can be used for the production of thousands of the same product, vastly reducing the comparable costs of machining the same shape from billet. The most common casting processes are; Die Casting, Permanent Mould Casting, Green and Dry Sand Casting, Plaster Casting and Investment Casting. The grading system via composition, as well as many characteristics are carried over directly from the designations for Wrought Products.

6xx.x Alloys

Magnesium and Silicon-Based Alloys

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