• PTFE vergine - Copertina
    25% Carbon B

PTFE COLORS

25% Carbon B
Data Sheet: F1-39

25% Carbon B (75% Virgin PTFE + 25% Soft Carbon Graphite)

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

 Property Method Units Specification
Physical Color - - Black
Specific gravity ASTM D792 g/cm3 2,070 – 2,120
Water absorption ASTM D570 % 0,03
Flammability UL 94   V-0
Mechanical Tensile strength ASTM D4745 MPa ≥ 13
Elongation ASTM D4745 % ≥ 60
Hardness ASTM D2240 Shore D ≥ 62
Ball Hardness ASTM D785 MPa ≥ 25
Deformation under load
(140 Kg/cm2 for 24 hrs. At 23° C)
ASTM D621 % 5-7
Permanent deformation
(after 24 hrs. Relaxation at 23° C)
ASTM D621 % 2-4
Coefficient of static friction ASTM D1894   0,13-0,15
Coefficient of dynamic friction ASTM D1894   0,11-0,13
Wear coefficient - cm3 min 10-8
Kg m h
34
Thermal  Thermal conductivity ASTM C177 W/ m*K 0,59
Coefficient of linear thermal expansion
From 25 to 100 °C
ASTM D696 10-5/°C 7-12
Electrical Volume resistivity ASTM D257 Ohm*cm 104
Surface resistivity ASTM D257 Ohm 103
 

STYLE PRODOTTI PTFE

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