POM GF25

POM – Polyacetal

POM GF25

POM GF25 contains 25% fibreglass. It is ideal for applications that involve the material being subjected to long-term loads and high temperatures.

Physical properties
  Value Unit Test method
Specific gravity 1.59 g/cm3 DIN EN ISO 1183
Average molecular mass N/A
Water absorption, 24/96 h (23 °C) 0.07/0.2 % DIN EN ISO 62
Weather-resistance moderate
Combustibility HB UL 94 DIN EN ISO 527-2
Food safety no
Mechanical properties
  Value Unit Test method
Modulus of elasticity 4,200 MPa DIN EN ISO 527-2
Tensile strength 51 MPa DIN EN ISO 527-2
Elongation at break 9 % DIN EN ISO 527-2
Tensile strength at break 12 % DIN EN ISO 527-2
Flexural modulus 4,100 MPa DIN EN ISO 178
Flexural strength 88 MPa DIN EN ISO 178
Compressive modulus 3,600 MPa EN ISO 604
Compressive strength, 1%/2% 23/39 MPa EN ISO 604
Impact strength (Charpy) 36 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) 180 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 -60 °C DIN 53765
Melting point 170 °C DIN 53765
Operating temperature (instantaneous) +140 °C
Operating temperature (continuous) 100 °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 8 10-5 K-1 DIN EN ISO 11359-1;2
Specific heat capacity 1.2 J/(g×K) ISO 22007-4:2008
Thermal conductivity 0.47 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 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 1.59 g/cm3
Service temperature N/A … 100 °C
Price category €€ (€8–25/kg)

Special properties

  • retention of dimensional accuracy
  • good mechanical strength
  • good creep-resistance

Applications

thermal insulation elements, levers, plugs, spring elements, rolls

Standard colours

grey

Premade pieces

enquire

Commonly known brands

CENTRODAL® GF, SUSTARIN® C GF 25, TECAFORM® AH GF25