PBT GF30

PET – Polyethylene terephthalate

PBT GF30

PBT GF30 is a polybutylene terephthalate that contains fibreglass and is classed as a PET material. Because of the added glass, the material has great mechanical strength and good dimensional accuracy across a wide temperature range.

Physical properties
  Value Unit Test method
Specific gravity 1.46 g/cm3 DIN EN ISO 1183
Average molecular mass N/A
Water absorption, 24/96 h (23 °C) 0.02/0.04 % DIN EN ISO 62
Weather-resistance poor
Combustibility HB UL 94 DIN EN ISO 527-2
Food safety no
Mechanical properties
  Value Unit Test method
Modulus of elasticity 3,400 MPa DIN EN ISO 527-2
Tensile strength 46 MPa DIN EN ISO 527-2
Elongation at break 5 % DIN EN ISO 527-2
Tensile strength at break 6 % DIN EN ISO 527-2
Flexural modulus 3,400 MPa DIN EN ISO 178
Flexural strength 78 MPa DIN EN ISO 178
Compressive modulus 2,800 MPa EN ISO 604
Compressive strength, 1%/2% 20/38 MPa EN ISO 604
Impact strength (Charpy) 37 kJ/m2 DIN EN ISO 179-1eU
Notch impact strength (Charpy) N/A
Notch impact strength (Izod) kJ/m2 DIN EN ISO 180/2A
Toughness (ball pressure) 190 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 N/A
Melting point 224 °C DIN 53765
Operating temperature (instantaneous) +200 °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 0.33 W/(m×K) ISO 22007-4:2008
Electrical properties
  Value Unit Test method
Surface resistivity 1014 DIN IEC 60093
Resistivity N/A
Dielectric strength N/A
CTI value N/A
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 sheets, bars
Specific gravity 1.46 g/cm3
Service temperature N/A … 110 °C
Price category €€€ (€26–50/kg)

Special properties

  • excellent mechanical strength and rigidity
  • dimensional accuracy across a wide temperature range
  • extremely low thermal expansion
  • excellent electrical insulation properties
  • good chemical-resistance
  • extremely low water absorption
  • good resistance to wear

Applications

cogs, bearing systems, wear plates

Standard colours

white

Premade pieces

enquire

Commonly known brands

SUSTADUR® PBT, TECADUR® PBT GF30, ZELLAMID® 1400 PBT