PET – Polyethylene terephthalate

Code: PET

Semi crystalline thermoplastic engineering material with great high strength, good rigidity and excellent machinability. Industry fields: Automotive industry, mechanical engineering, electrical engineering, precision engineering, household appliances, food technology, medical technology, transport and conveyor technology.

Semi crystalline thermoplastic engineering material with great high strength, good rigidity and excellent machinability. Industry fields: Automotive industry, mechanical engineering, electrical engineering, precision engineering, household appliances, food technology, medical technology, transport and conveyor technology.

Very low water absorption. Easy machined and suitable for food contact. Tough, strong and rigid. Good sliding properties and electrical insulation. Resistant to cleaning agents, many solvent and acids. Easy to bond, weld, polish and machine. Great abrasion resistance

Not resistant long term to water over 60 oC

Properties Unit Test method DIN EN ISO/ASTM Value
Mechanical
Density g/cm3 527 / D792 1,37
Tensile strength at yield MPa 527 / D638 88
Tensile strength at break MPa
Elongation at breaк % 527 / D638 4
Modulus of elasticity in tension MPa 527 / D638 3200
Modulus of elasticity in flexure MPa 178 / D790
Ball indentation hardness MPa 2039 / 1 95
Impact strength kJ/m2 179 / D256 No br.
Creep rupture strength after 1000 hrs with static load MPa 36
Time yield limit for 1% elongation after 1000 hrs. MPa 13
Coefficient of friction against hardened and ground steel p=0,05 N/mm2, v=0,6 m/s —– 0,25
Wear conditions as above μm/km 0,35
Thermal
Crystalline melting point °C DIN 53 736 255
Glass transition temperature °C DIN 53 736 70
Heat distorsion temperature Method A Method B °C °C R 75 R 75 95 170
Max. service temperature Short term

Long term

°C °C Up to 160

110

Coefficient of thermal conductivity W/(m.K) 0,24
Specific heat J/(g.K) 1.10
Coefficient of thermal expansion 10-5 / K DIN 53 483 /D696 7
Electrical
Dielectric constant at 105 Hz DIN 53 483 3.20
Dielectric loss factor at 105 Hz DIN 53 483 0.021
Specific volume resistance Ω . cm DIN 60093 1013
Surface resistance DIN 60093 1015
Dielectric strength 1 mm kV/mm ASTM 149 60
Tracking resistance 53480 KC 350
Others
Moisture absorption (standart) % 62 0.25
Water absorption at saturation 230 C % 62 0.50
Resistance to hot water, washing soda Not resistant
Flammability (UL standart 94) HB
Resistance to weathering Resistant in black

Plugs, housing parts, insulators, seals, gear wheels, friction bearings, friction strips, tool carriers, rollers, agitators and etc.