HELCO - Pultrusion Profiles
The desired properties that pultrusion profiles combine and make them replace a lot of conventional materials such as metal, wood, aluminium etc. are the following (indicational values are given, along the profil) :1. High Mechanical Strength
• Tensile strength |
700 - 800 MPa |
• Modulus of elasticity in tension |
35 - 40 GPa |
• Flexural strength |
700 - 800 MPa |
• Modulus of elasticity in flexion |
35 - 45 GPa |
• Elongation before break |
2 % |
• Compression strength |
350 - 450 MPa |
• Modulus of elasticity in compression |
25 - 30 GPa |
• Impact strength (Izod) |
2000 J/m |
• Hardness Barcol |
45 - 50 |
2. Low specific weight
• Density |
1.8-2.0 kg/dm3 |
Pultrusion products’ relatively low specific weight combined with their good mechanical strength result in specific strength values greater than those of steel.
3. Resistance to chemical and thermal infection and to corrosion
• Temperature range of usage |
-100 oC to +150 oC |
• Humidity absorption |
0.15 % |
4. Electric and heat insulation
• Thermal conductivity |
0.2 - 0.4 W/mK |
• Coefficient of thermal expansion |
12(E-6) (1/K) |
• Electrical resistivity |
1(E-10) - 1(E-15) Ohm/cm |
