WJEC Vocational Award Engineering Level 1/2

WJEC Vocational Award Engineering Level 1/2 Examples of NON-FERROUS METALS include: Material Properties Common uses Made-up from Aluminium • Light • Soft • Malleable • Good for alloys • External products • Aircraft • Aluminium Lead • Ductile • Malleable • Heavy • Roofing • Batteries • Lead Copper • Good conductor • Ductile • Piping • Electrical wiring • Copper Gold • Soft • Malleable • Tarnish/corrosion resistant • Jewellery • High-end stereo connections • Gold Brass • Hard • Corrosive resistant • Musical instruments • Ornamental products • Copper • Zinc Alloys An ALLOY is a mixture of elements that usually have a metal as the major/parent component (e.g. STEEL is 99.9% IRON and 0.1% CARBON). Alloys were developed to create different properties from just having a pure, parent metal. By heating-up, melting and mixing different metals you can create new metals with new, different properties. Bronze is an alloy that is created by mixing copper and tin. Bronze is harder, more corrosion resistant and easier to melt and cast into different shapes (e.g. axe-heads) than both its parent metals, copper or tin. Duralumin is a modern alloy created from having aluminium as a parent metal then adding small amounts of other metals (copper, magnesium, manganese) to create a material that is lightweight, strong and extremely corrosion resistant. Many car and aircraft parts are made from duralumin, an alloy. Examples of Bronze Age axe-heads. 46