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Polyamide

Poliamid

Polyamide is a construction material which belongs to the group of thermoplastics. It is characterized with high strength, hardness, tensile strength, low gravity and self-lubricity. The combination of these characteristics makes it an ideal material as the material is used for the implementation of components such as gears, pulleys, baskets, housings, pumps, bearings, sealing rings, steering shafts, and other strips. Available in the form of plates in thickness from 1mm to 200mm, rods in diameter from 6mm to 250mm, and tubes with an outside diameter of 250mm. In case of fire polyamide, it exhibits self-extinguishing. Polyamides are used for recycling.

Mechanical properties Value Unit Research method
Tensile stress1 60 N/mm2 DIN 53455
Tensile stress2 80 N/mm2 DIN 53455
Ultimate elongation >50 % DIN 53455
Modulus of elasticity-tension attempt1 1600 N/mm2 DIN 53457
Modulus of elasticity-tension attempt2 3000 N/mm2 DIN 53457
Ball hardness H 358/30 150 N/mm2 DIN 53456
Impact resistance Without fracture kJ/m2 DIN 53453
Notched impact strength (Charpy)1 >20 kJ/m2 DIN 53453
Notched impact strength (Charpy)2 >3 kJ/m2 DIN 53453
Creep limit (1% elongation at 1000h)1 5 N/mm2 DIN 53444
Creep limit (1% elongation at 1000h)2 15 N/mm2 DIN 53444

1Wet sample, after storage
in normal conditions 23/50
(DIN 50014) up to saturation;
2 Dry sample

 

Physical properties Value Unit Research method
Density 1,41 g/cm3 DIN 53479
Moisture absorption to saturation (at 23°C) 1,7 % DIN 53715

 

Thermal properties Value Unit Research method
Usable temperature (max short term) 160 °C -
Usable temperature (max constantly) 85 °C -
Temperature of deflection under load - method A 90 °C DIN 53461
Temperature of deflection under load - method B 190 °C DIN 53461
Linear coefficient of expansion 23-100°C 7-10 10-5x1/K DIN 53752
Heat conductivity (23°C) 0,23 W/(K*m) DIN 52612
Combustibility HB - UL 94
Melting temperature, DSC 220 °C DIN 53736

 

Electric properties Value Unit Research method
Volume resistance 1014 ? cm DIN 53482
Dielectric constant 3,7 106 Hz DIN 53483
Scattering coefficient 0,027 106 Hz DIN 53483
Dielectric resistance 20 kV/mm DIN 53481
Surface resistance 1014 ? DIN 53482