properties and characteristics: high strength/ wieght ratio, light, soft and ductile (FCC), work hardens in cold state, annealing necessary, difficult to join, non-toxic, good conductor of heat and electricity, corrosion- resistant, poliches well
properties and characteristics: almost the strength of mild steel but only 30% of the weight, hardens with age, machines well after annealing
uses: aircraft structure
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non- ferrous metals and alloys 2
copper (Cu)
melting point: 1083 degrees
composition: pure metal
properties and characteristics: malleable, ductile (FCC), tough, suitable for hot and cold workig, good conductor for heat and electricity, corrosion- resistant, easily joined, solders and brazes well, polishes well, rather expensive
uses: hot water storage cylinders, central heating pipes/tubing, wire elctricty, copper clad board (circuits)
Brass
melting point: 900-1000 degrees
composition: 35% zinc
properties and characteristics: corrosion- resistant, increased hardness, cats well, work hardens, easily joined, good conductor of heat and electricity, polishes well
properties and characteristics: strong and tough, good wearing qualities, corrosion- resistant
uses: statues, coins, bearings
Tin (Sn)
melting point: 232 degrees
composition: pure metal
properties and characteristics: soft and weak, ductile and malleable, excellent resistance to corrosion even when damp, low melting point
uses: bearing metals, solder
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non- ferrous metals and alloys 4
Zinc (Zn)
melting point: 419 degrees
composition:pure metale
properties and characteristics:ver weak, poor strength/weight ratio, extremely resistant to atmospheric corrosion, low melting point, ductile (CPH) but difficult to work, expensive
uses: galvanised steel, dustbins, corrugated iron sheet roof, die casting alloys and rust proof paints
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