non-ferrous metals and their alloys

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  • Created by: aysen
  • Created on: 08-01-14 19:45

non- ferrous metals and alloys

Aluminium

  • melting point: 660 degrees 
  • composition: pure metal
  • 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
  • uses: kitchen cooking utensils (pans) packaging, cans, foils, window frames

Duralumin

  • composition: 4% copper, 1%manganese, +magnesium 
  • 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
  • uses: casting (e.g. valves) boat fittings, ornaments
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non- ferrous metals and alloys 3

Bronze

  • melting point: 900- 1000 degrees
  • composition: 10% tin
  • 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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