: Requires testing for energy absorption at temperatures as low as –40 °C . Standard Thickness Limits
| Term | Description | |------|-------------| | | Target thickness declared by manufacturer | | Burr height | Vertical protrusion at sheared edge (max allowable typically 0.05–0.10 mm) | | Camber | Lateral deviation from straight line over a given length | | Edge wave / center buckle | Localized flatness deviations | | Shear drop | Deformation depth from shearing operation | en 102251 pdf
The 2019 edition introduced several updates to ensure material reliability: Mechanical Properties: Specifies minimum yield strengths up to and impact properties at temperatures as low as Delivery Conditions: : Requires testing for energy absorption at temperatures
Step 3 – Burr & Edge Quality