Glasfiber.
Egenskaper
Tekniska egenskaper och vad som kännetecknar GRP-produkter från Safestep.
Technical data of GRP Profiles can vary according to the type of fibre reinforcement, shape and wall-thickness.
| GRP profiles type MR mat/roving reinforced |
GRP profiles 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) |
25.000 MPa | 9.000 MPa | 40.000 MPa | |
| E-Modulus (flexural) |
25.000 MPa | 9.000 MPa | 40.000 MPa | |
| elongation | 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 | ||
| Values for both types | |
|---|---|
| interlaminar shear strength |
25 – 35 MPa |
| specific insulation resistance |
10^10 – 10^15 Ohm* cm |
| surface resistance | 10^10 – 10^15 Ohm |
| dielectric strength | 5 – 10 kV/mm |
| tracking index CTI | KA 3c / KB 500 / KC 600 |
| dielectric constant | < 5 |
| coefficient of thermal expansion |
12 x 10 -61/K |
| thermal conductivity | 0,2 – 0,6 W/m*K |
| specific heat capacity | 1,0 – 1,2 kJ/kg*K |
| max. continous temperature |
-100°C to +155°C (180°C) |
| water absorption | < 0,15% |
| temperature deflection under load (Martens) |
200°C |
| incandescence resistance | Level 2b |
| fire resistance | B2, UL94 V1, UL94 V0, DIN 5510 S4 SR2 ST2, ASTM E84 < 25, ASTM D635 |
| Short and longterm application limits | ||||
|---|---|---|---|---|
| short-term behaviour | long-term behaviour | |||
| Type MR | Z | X | Z | X |
| bending strength | 135 MPa | 20 MPa | 70 MPa | 15 MPa |
| tensile strength | 135 MPa | 20 MPa | 70 MPa | 15 MPa |
| compression strength | 135 MPa | 25 MPa | 70 MPa | 20 MPa |
| shear strength Z=X | 17 MPa | 8 MPa | ||
E-Modulus
Specific tensile strength
Density
