• PTFE vergine - Copertina
    20% Graphite

PTFE COLORS

20% Graphite
Data Sheet: F1-33

20% Graphite ( (80% Virgin PTFE + 20% Graphite)

PTFE Graphite Compound preferred for parts and components requiring very good mechanical properties.

 Property Method Units Specification
Physical   Color - - Black
Specific gravity ASTM D792 g/cm3 2,12 – 2,18
Water absorption ASTM D570 % 0,05
Flammability UL 94   V-0
Mechanical Tensile strength ASTM D4745 MPa ≥ 14
Elongation ASTM D4745 % ≥ 140
Hardness ASTM D2240 Shore D ≥ 55
Ball Hardness ASTM D785 MPa ≥ 25
Deformation under load
(140 Kg/cm2 for 24 hrs. At 23° C)
ASTM D621 % 9,5-11
Permanent deformation
(after 24 hrs. Relaxation at 23° C)
ASTM D621 % 4,5-5,5
Coefficient of static friction ASTM D1894   0,12-0,14
Coefficient of dynamic friction ASTM D1894   0,09-0,11
Wear coefficient - cm3 min 10-8
Kg m h
1800-2300
Thermal Thermal conductivity ASTM C177 W/ m*K 0,78
Coefficient of linear thermal expansion
From 25 to 100 °C
ASTM D696 10-5/°C 7-12
Electrical Volume resistivity ASTM D257 Ohm*cm 107
Surface resistivity ASTM D257 Ohm 106
 

STYLE PRODOTTI PTFE

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