Structural Steel Sections
1. Specimen Requirements
- Standard: Plate/profile width 20mm
- Reduced profile: 12.5mm Widths for higher capacity needs
- Thickness: Based on parent material
- Surface finish: Machined to 3.2 µm Ra
2. Test protocol
- Strain rate control:
* Elastic region: 0.5 mm/min
* Plastic region: 2.0 mm/min
- Data sampling: Minimum 100 points before yield
3. Performance parameters
- Young's modulus (E)
- Yield point/yield stress
- Ultimate tensile strength
- Elongation at break
- Stress ratio requirements