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Additional properties of the materials used for pistons.
| Material | Average Hardness | Impact Energy (J) | Elongation at Break (%) |
|---|---|---|---|
| 65-45-12 | 131–220 HB | 14 (23 °C) | 12 |
| C35 | 160 HB | 23 (23 °C) | 17 |
| C45 | 200 HB | 25 (23 °C) | 14 |
| S275JR | 160 HB | 27 (20 °C) | 22 |
| S355JR | 165 HB | 27 (20 °C) | 22 |
| BS970070M20 | 140 HB | 24 (10 °C) | 21 |
| Al 7075-T6 | 150 HB | 17 (23 °C) | 10 |
| POM | 81 (Shore D) | – | 30 |
