Characteristic values
Depending on the type of fiber reinforcement of the profile structure and the wall thickness, the technical data of the GRP profiles vary. The application-specific suitability must be checked in each individual case.
| GRP profile type MR Mat/Roving-reinforced | GRP profile type UD Roving reinforced |
||
|---|---|---|---|
| Z | X | Z |
|
| Tensile strength | 250 - 450 MPa | 20 - 60 MPa | 900 MPa |
| Flexural strength | 250 - 450 MPa | 20 - 60 MPa | 900 MPa |
| E-modulus (tensile strength) | 25.000 MPa | 9.000 MPa | 40.000 MPa |
| E-modulus (bending) | 25.000 MPa | 9.000 MPa | 40.000 MPa |
| Elongation at break | 1,0 - 1,8 % | 2 % | |
| Compressive strength | 150 - 300 MPa | 30 - 60 MPa | 450 MPa |
| Compressive modulus | 10.000 MPa | 4.000 MPa | 30.000 MPa |
| Density | 2,0 kg/dm³ | 2,1 kg/dm³ | |
| Impact strength IZOD | 90 - 120 kJ/m² | 120 kJ/m² | |
| Barcol hardness | > 40 | > 50 |
| Characteristic values applicable to all types | |
|---|---|
| Interlaminar shear strength | 25 - 35 MPa |
| Specific volume resistivity | 10^10 - 10^15 Ohm* cm |
| Surface resistance | 10^10 - 10^15 Ohm |
| Dielectric strength | 5 - 10 kV/mm |
| Tracking resistance CTI | KA 3c / KB 500 / KC 600 |
| Dielectric constant | < 5 |
| Lin. Coefficient of thermal expansion | 12 x 10 -61/K |
| Thermal conductivity | 0,2 - 0,6 W/m*K |
| Spec. heat capacity | 1,0 - 1,2 kJ/kg*K |
| Continuous operating temperature | -100°C bis +155°C (180°C) |
| Water absorption | < 0,15% |
| Dimensional stability n. Martens | 200°C |
| Ember resistance | Level 2b |
| Fire behaviour | B2, UL94 V1, UL94 V0, DIN 5510 S4 SR2 ST2, ASTM E84 < 25, ASTM D635 |
Application limits
| Short-term behaviour | Long-term behaviour | |||
|---|---|---|---|---|
| Type MR | Z | X | Z | X |
| Bending stress | 135 MPa | 20 MPa | 70 MPa | 15 MPa |
| Tensile stress | 135 MPa | 20 MPa | 70 MPa | 15 MPa |
| Compressive stress | 135 MPa | 25 MPa | 70 MPa | 20 MPa |
| Shear stress Z=X | 25.000 MPa | 8 MPa | ||
