Properties and uses of different kinds of steel
2 marks · NormalState one typical use of high-carbon steel. Give a reason for this use based on its properties.
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Also accept: Typical use: Cutting tools such as knives or blades.; Reason: Because high-carbon steel is hard and wear resistant/keeps a sharp edge.
Common mistakes: Listing uses for mild or stainless steel.; Giving vague reasons such as 'it is strong' without reference to hardness.
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Marking points
B1 · 1 mark · Gives a correct typical use of high-carbon steel (e.g., cutting tools, knives).
B2 · 1 mark · Gives a relevant property as the reason for the use (e.g., hard, wear resistant, keeps a sharp edge).
Worked solution
High-carbon steel is used for cutting tools (e.g., knives) because it is very hard and keeps a sharp edge.