Polietilenetereftalato (PET)

PET

Raw material	Polietilenetereftalato
DIN abbreviation	PET
Color	Black
Test condition	dry

MECHANICAL CHARACTERISTICS

Specific weight DIN 53479 (g / cm3)	1.38
Resist. tensile strength DIN 53455 (N / mm2)	90
Elongation at break DIN 53455 (%)	>20
Modulus of elasticity from tensile test DIN 53457 (N / mm2)	3000
Bending limit stress DIN 53452 (N / mm2)	145
Resilience DIN 53453 (KJ / m2)	KB
Impact strength with notch DIN 53453 (KJ / m2)	>4
Hardness test with ball indenter DIN 53456 (N / mm2)	180
Stretch tension 1% / 1000 h DIN 53444 (N / mm2)	–
Stretch tension 2% / 1000 h DIN 53444 (N / mm2)	–
Coefficient of friction against steel, dry	0,22
Absorption of humidity in normal climate (%)	0,2

ELECTRICAL CHARACTERISTICS

Relative dielectric constant DIN 53483 at 10 Hz	3.4
Dielectric loss factor DIN 53483 at 10 Hz	0.020
Ground resistivity DIN 53482 (ohm * cm)	10 el.16 (el.=elevato alla)
Surface resistance DIN 53482 (ohm)	10 el.14 (el.=elevato alla)
Resistance to surface leakage current DIN 53480	KC125
Dielectric strength DIN 53481 (Kv / mm2)	20

THERMAL CHARACTERISTICS

Crystalline melting range (° C)	255
Thermal conductivity DIN 52612 (W / K * m)	0,28
Specific thermal capacity (kJ el. -1 / Kg * ° C)	1.05
Coefficient of linear expansion (10 el.-6 * k el.-1)	30 – 60
Maximum operating temperature for short use (° C)	170
Operating temperature for permanent use (° C)	-20à – 120
Dimensional stability DIN 53461 (° C)	80
Flammability according to UL 94	HB

SPECIAL FEATURES

duttile, duro, dimensionalmente stabile, scorrimento a freddo ridotto