Metals Flashcards
Where does metal come from and effects
metal comes from metal ores, it destroys habitats andf takes a huge amount of energy to process. Metal is mostly easy to recycle - but requires a lot of energy
Non-ferrous definition
does not contain iron and do not rust, but can still corrode
Ferrous definition
a metal containing mostly iron and carbon, they are magnetic but will rust and can be treated or coated to avoid this. The more carbon the harder it is but more brittle
Alloys definition
alloys are mixed metals and desired properties can be applied for different purposes
Aluminium properties and uses
Prop - lightweight, malleable, corrosion resistant
Uses - cans, bike frames, window frames
Copper properties and uses
Prop - malleable, ductile, electrical/thermal conductor
Uses - electrical wire, water pipes, printed circuits
Zinc properties and uses
Prop - low mp, corrosion resistant
Uses - galvanising steel as protective coating. buckets, gates
Silver properties and uses
Prop - ductile, malleable, corrosion resistant, soldered
Uses - jewellery, cutlery, plating
Gold properties and uses
Prop - ductile, malleable, corrosion resistant, soldered
Uses - jewellery, electronic components
Titanium properties and uses
Prop - hard, strong, high resistance to corrosion
Uses - joint replacements, spacecrafts, bicycles
Tin properties and uses
Prop - ductile, malleable, corrosion resistant, soldered
Uses - soft solder, coating for food cans
Low carbon steel properties and uses
Prop - ductile, high tensile strength, poor corrosion resistant, tough
Uses - nuts, bolts, screws, car bodies
Medium carbon steel properties and uses
Prop - harder than low carbon but less ductile, malleable, tough
Uses - springs, gardening tools
Cast iron properties and uses
Prop - hard outer skin but brittle core, good under compression
Uses - machine parts, sheet furniture
Stainless steel properties and uses
Prop - tough, hard, corrosion resistant
Uses - sinks, kitchenware, cutlery
High speed steel properties and uses
Prop - hard, tough, high level of resistance to frictional heat
Uses - tool blades, drill bits, router bits
Die steel properties and uses
Prop - hard, tough
Uses - blanking punches and dies, fine press tools
Non-ferrous metals examples
aluminium, copper, zinc, silver, gold, titanium, tin
Ferrous metals examples
low carbon steel, medium carbon steel, cast iron
Ferrous alloys metals examples
stainless steel, high speed steel, die steel
