TECANYL 731 grey


TECANYL 731 grey is a PPE plastic, which is colored gray. This amorphous plastic is particularly characterized by its high dimensional stability and impact strength. Due to the good electrical insulation, TECANYL 731 grey is often used as a housing part in the electrical industry.


Chemical designation
PPE (Polyphenylene ether)
1,1 g/cm3

Main Features

  • high strength
  • electrically insulating
  • high toughness
  • good weldable and bondable
  • sensitive to stress cracking

Target industries

Technical details

  • Mechanical properties
    Mechanical propertiesValueUnitParameterNorm
    Flexural strength85MPa2mm/min, 10 NDIN EN ISO 178
    Modulus of elasticity
    (flexural test)
    2500MPa2mm/min, 10 NDIN EN ISO 178
    Compression strength18/33/74MPa1% / 2% / 5%EN ISO 604
    Compression modulus2100MPa5mm/min, 10 NEN ISO 604
    Impact strength (Charpy)69kJ/m2max. 7,5JDIN EN ISO 179-1eU
    Ball indentation hardness146MPaISO 2039-1
    Modulus of elasticity
    (tensile test)
    2400MPa1mm/minDIN EN ISO 527-2
    Tensile strength57MPa50mm/minDIN EN ISO 527-2
    Tensile strength at yield57MPa50mm/minDIN EN ISO 527-2
    Elongation at yield15%50mm/minDIN EN ISO 527-2
    Elongation at break22%50mm/minDIN EN ISO 527-2
  • Thermal properties
    Thermal propertiesValueUnitParameterNorm
    Glass transition temperature145CDIN EN ISO 11357
    Service temperature110Cshort termNN
    Service temperature85Clong termNN
    Melting temperaturen.a.CDIN EN ISO 11357
    Thermal expansion (CLTE)810-5*1/K23-100°C, long.DIN EN ISO 11359-1;2
    Thermal expansion (CLTE)810-5*1/K23-60°C, long.DIN EN ISO 11359-1;2
    Thermal conductivity0.21W/(k*m)ISO 22007-4:2008
    Specific heat1.3J/(g*K)ISO 22007-4:2008
  • Electrical properties
    Electrical propertiesValueUnitParameterNorm
    surface resistivity1014ODIN IEC 60093
    volume resistivity1014O*cmDIN IEC 60093
  • Other properties
    Other propertiesValueUnitParameterNorm
    Resistance to hot water/ bases(+)--
    Flammability (UL94)HB-corresponding toDIN IEC 60695-11-10;
    Resistance to weathering---
    Water absorption0.04%24h / 96h (23°C)DIN EN ISO 62

Stock program