GRP Thickness Grades
All of our profiles are made to BS EN 13706 which defines the minimum mechanical properties in each of two grades E17 and E23. All our profiles with a wall thickness greater than 5mm are grade E23.
GRP compliance to industry standards
The table below shows the minimum properties to comply with the two grades defined in the BS EN 13706.
| Units | Property Data | ||
| E23 Grade | E17 Grade | ||
| Full section modulus | GPa | 23 | 17 |
| Tensile strength (axial) | MPa | 240 | 170 |
| Tensile strength (transverse) | MPa | 50 | 30 |
| Tensile Modulus (axial) | GPa | 23 | 17 |
| Tensile Modulus (transverse) | GPa | 7 | 5 |
| Flexural strength (axial) | MPa | 240 | 170 |
| Flexural strength (transverse) | MPa | 100 | 70 |
| Inter-laminar shear | MPa | 25 | 15 |
| Pin bearing strength | MPa | 70 | 50 |
GRP grades E23 & E17
Examples of GRP products. Click for a larger view.
