Metals and alloys (AQA GCSE Design and Technology): Flashcards
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15 cards from this deck
What structure type are metals?
What structure type are metals?
Crystalline materials
Ferrous metals key element
Ferrous metals key element
Iron (ferrite)
Ferrous metals key properties
Ferrous metals key properties
Magnetic and susceptible to rusting
Mild steel carbon %
Mild steel carbon %
0.15% to 0.25%
Cast iron carbon %
Cast iron carbon %
2% to 6%
High carbon steel carbon %
High carbon steel carbon %
0.8% to 1.5%
Non-ferrous metals & iron
Non-ferrous metals & iron
Contain no iron
Non-ferrous metals properties
Non-ferrous metals properties
Won't rust, not magnetic, more malleable
Aluminium melting point
Aluminium melting point
660°C
Copper conductivity
Copper conductivity
Exceptional electrical & thermal conductivity
Zinc main use
Zinc main use
Galvanising ferrous metals (prevents rust)
Alloys definition
Alloys definition
Mix of 2+ metals/elements with improved properties
Brass composition
Brass composition
65% copper, 35% zinc
Stainless steel chromium role
Stainless steel chromium role
10.5-18%, forms protective layer preventing rust
High speed steel temp hardness
High speed steel temp hardness
Maintains hardness up to 600°C