Please enable JavaScript.
Coggle requires JavaScript to display documents.
Metals - Coggle Diagram
Metals
Non-ferrous (not containing iron)
Aluminium
From alumina, obtained by electrolysis
Light, recyclable, conducts heat and electricity, malleable and ductile, low tensile strength, oxide layer protects it from corrosion
Uses: Cans, ladders, windows, foil, aircraft, cars, etc.
Zinc
Used to coat steel - resistant to corrosion (galvanising), brittle
Copper
Excellent conductor of electricity, malleable, ductile, corrosion resistant, resists wear and shock, soldered easily, very expensive, needs to be annealed worked
Used for wires, kitchenware (e.g. teapots, saucepans)
Lead
Titanium
Tin
Ferrous (contains iron)
Cast Iron
Brittle due to high amount of carbon, low melting point, good machinability and castability, resistance to deformation and wear resistance.
Used for pipes, machines, etc.
All ferrous metals are prone to rust (oxidisation) - prevented by finishing, etc.
Mild steel
Alloy of Iron and carbon (up to 0.3%), ductile, tough malleable, high tensile strength
Stainless steel
Utensils, sinks, surgical tools, etc.
Chromium to resist rust, difficult to machine and weld
Carbon steel
up to 1.4% Carbon, making it harder
Used for construction, workshop tools, etc.
Alloys (multiple metals mixed for better properties)
Brass - copper and zinc
Instruments, valves, plugs and sockets
Good conductor of electricity, resists corrosion, easily soldered, can crack when worked
Duralumin - Aluminium, copper and manganese
Strong, lightweight, durable
Prone to work hardening, used in aviation, etc.
Pewter - Tin, antimony/lead, copper, bismuth, (silver)
Can be easily cast
Metals come from the Earth in the form of ore
The ore goes through a process called smelting in a blast furnace
Or some metals are obtained by electrolysis
:
