PET

PET – Polyethylene terephthalate

PET

PET is highly suitable for use in parts that are subjected to great loads and wear. Because of its good mechanical, electrical, and heat-related properties, PET is used in a wide range of applications, particularly when a low coefficient of friction and good precision, wear‑resistance, and load-bearing abilities are required. The material is based on a homopolymer.

Physical properties
  Value Unit Test method
Specific gravity 1.36 g/cm3 DIN EN ISO 1183
Average molecular mass N/A
Water absorption, 24/96 h (23 °C) 0.02/0.03 % DIN EN ISO 62
Weather-resistance poor
Combustibility HB UL 94 DIN EN ISO 527-2
Food safety yes
Mechanical properties
  Value Unit Test method
Modulus of elasticity 3,100 MPa DIN EN ISO 527-2
Tensile strength 79 MPa DIN EN ISO 527-2
Elongation at break 5 % DIN EN ISO 527-2
Tensile strength at break 10 % DIN EN ISO 527-2
Flexural modulus 3,200 MPa DIN EN ISO 178
Flexural strength 121 MPa DIN EN ISO 178
Compressive modulus 2,700 MPa EN ISO 604
Compressive strength, 1%/2% 19/35 MPa EN ISO 604
Impact strength (Charpy) 81 kJ/m2 DIN EN ISO 179-1eU
Notch impact strength (Charpy) 4 kJ/m2 DIN EN ISO 179-1eA
Notch impact strength (Izod) kJ/m2 DIN EN ISO 180/2A
Toughness (ball pressure) 175 MPa ISO 2039-1
Toughness (Shore D) N/A
Wear-resistance N/A
Coefficient of friction (against steel) N/A
Thermal properties
  Value Unit Test method
Glass-transition temperature 81 °C DIN 53765
Melting point 244 °C DIN 53765
Operating temperature (instantaneous) +170 °C
Operating temperature (continuous) 110 °C
Operating temperature (minimum) N/A
Thermal expansion coefficient, 23–60 °C 8 10-5 K-1 DIN EN ISO 11359-1;2
Thermal expansion coefficient, 23–100 °C 10 10-5 K-1 DIN EN ISO 11359-1;2
Specific heat capacity 1.2 J/(g×K) ISO 22007-4:2008
Thermal conductivity 0.31 W/(m×K) ISO 22007-4:2008
Electrical properties
  Value Unit Test method
Surface resistivity 1014 DIN IEC 60093
Resistivity 1014 Ω×cm DIN IEC 60093
Dielectric strength N/A
CTI value 600 V DIN EN 60112
Optical properties
  Value Unit Test method
Light transmittance N/A
Refractive index N/A
Optical errors N/A
Abrasion-resistance, 100 rotations with 500 g N/A

Additional downloads

Delivery selection hollow bars, sheets, bars
Specific gravity 1.36 g/cm3
Service temperature N/A … 110 °C
Price category €€ (€8–25/kg)

Special properties

  • good mechanical strength, rigidity, and hardness
  • extremely high creep-resistance
  • low coefficient of friction
  • excellent wear-resistance
  • good chemical-resistance
  • suitability for the food industry
  • excellent electrical insulation properties

Applications

components for the electronics industry, bearings, bushings, cogs, controls

Standard colours

white, black

Special colours

in minimum order quantities

Premade pieces

enquire

Commonly known brands

CENTROLYTE®, Ertalyte® PET-P, GEHR PET®, TECAPET®, ZELLAMID® 1400 HI