Plastics, Engineering PlasticsPET Bar

A polyester material with a relatively high density.

PET has a unique combination of properties and has better wear and abrasion resistance than nylon or acetal, wet or dry. It also has significantly better dimensional stability and low thermal expansion rate plus good electrical properties.

Its superior chemical resistance, non staining characteristics, and distinct lack of centerline porosity, makes it a desirable material for a variety of applications especially in the food industry that might involve solvents, cleaning chemicals, or direct food contact.

Due to its good creep strength, low moisture absorption and outstanding dimensional stability, PET plastic material is extremely well suited for applications where complex parts and the highest requirements regarding dimensional accuracy and surface quality are needed. The thermal properties of PET support a good temperature stability as well as dimensional stability.

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Product FormSize Range
Round Bar10.0mm - 200.0mm
If you do not see what you are looking for, please contact your local service centre with your specific requirements.


Properties are for natural bar.

PropertyParameterTest MethodValue
Mechanical Properties
Modulus of Elasticity1mm/minDIN EN ISO 527-23300 MPa
Tensile Strength50mm/minDIN EN ISO 527-291 MPa
Elongation at Break50mm/minDIN EN ISO 527-214%
Flexural Strength2mm/min, 10 NDIN EN ISO 178134 MPa
Compression Modulus5mm/min, 10 NEN ISO 6042500 MPa
Charpy Impact Strengthmax 7.5JDIN EN ISO 179-1eA150 kJ/m²
Ball Indentation HardnessISO 2039-1194 MPa
Thermal Properties
Melting TemperatureDIN EN ISO 11357244 °C
Service TemperatureShort TermNN170 °C
Service TemperatureLong TermNN110 °C
Thermal ConductivityISO 22007-4:20080.31 W/(k*m)
Specific HeatISO 22007-4:20081.2 J(g*K)
Electrical Properties
Surface ResistivityDIN IEC 600931014 Ohm
Volume ResistivityDIN IEC 600931014 Ohm*C
Resistance to racking (CTI)DIN IEC 60112600 V
Other Properties
Water Absorption24h/96h (23 °C)DIN EN ISO 620.03%
Flammability (UL94)DIN IEC 60695-11-10HB
Density1.39 g/cm³

Additional Information

Comparison with Other Material


  • Electronic industry: Cases, covers, switches, insulation panes and coil bodies
  • Automotive industry: Cases, screen wiper arms and door handles
  • Medical industry: Functional parts in drug dosing systems
  • Mechanical engineering: Gears and sliding elements
  • Food industry: Guidance, slide bar, stop units, rollers and grabbers


  • High strength
  • High rigidity and hardness
  • Very low moisture absorption
  • Good creep resistance
  • Low sliding friction and sliding wear
  • Resistant to hydrolysis (up to +70 °C)
  • Not suitable for contact with media containing >50% alcohol
  • Good chemical resistance against acids
  • Good adhesion and welding ability
  • Suitable for food contact
  • Good machinability
  • Electrically insulating

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