Properties and uses of different kinds of steel
2 marks · NormalState one property of mild steel and one property of high-carbon steel.
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Common mistakes: Giving the same property for both types of steel.; Listing a use instead of a property.
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Marking points
B1 · 1 mark · States any correct property of mild steel (e.g. 'malleable', 'ductile', 'strong', 'can rust', 'reletively soft', 'contains up to 0.25% carbon', 'prone to rusting').
B2 · 1 mark · States any correct property of high-carbon steel (e.g. 'hard', 'brittle', 'more resistant to wear than mild steel', 'contains 0.6–1.2% carbon').
Worked solution
Mild steel is malleable (accepts: ductile, strong, or can rust). High-carbon steel is hard (accepts: brittle, more resistant to wear).