A manufacturer is choosing a steel for a retaining clip. One sample is low-carbon steel and the other is high-carbon steel.
During manufacture, each steel strip must be bent through a tight angle. The finished clip must support at least 120 N without permanently bending.
The manufacturer tests identical strips of each sample.
| Steel sample | Force needed to make the tight bend in N | Maximum load before permanent bending in N | Result after making the tight bend |
|---|---|---|---|
| P | 90 | 160 | No crack |
| Q | 210 | 340 | Cracked |
Evaluate which steel sample should be used to make the retaining clip.
118 exam-style questions on AQA GCSE Chemistry 10.3 Using materials, covering 10.3.1 Corrosion and its prevention, 10.3.2 Alloys as useful materials, and 10.3.3 Ceramics, polymers and composites. Each one has a worked solution and a mark scheme showing where the marks go.