Technical Data Sheet
Safety Data Sheet

PTFE Balls

PTFE Balls are an engineered plastic product from Goodfellow, available in 5 variations. These polytetrafluoroethylene (PTFE) balls exhibit excellent chemical resistance, high temperature resistance, low friction, and electrical insulating properties. PTFE balls find use across scientific and industrial applications including bearings, valves, and seals where lubricity, chemical inertness, and heat resistance are required.
Formula: PTFE
Diameter: 3.18mm
Quantity: 10 Pcs
Type: Precision Sphere
Sphericity: 25µm
CAS Number: 9002-84-0
UOM Code: 192-033-30
SKU: 1000075505
Product Code: FP30-SP-000120


Diameter Standard ±5%
Diameter Precision See Item
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Diameter Standard ±5%
Diameter Precision See Item
Technical Data Sheet
Safety Data Sheet

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Material Properties for Polymers

Chemical Resistance
Element Value
Acids - concentrated Good
Acids - dilute Good
Alcohols Good
Alkalis Good
Aromatic hydrocarbons Good
Greases and Oils Good
Halogenated Hydrocarbons Good
Halogens Good
Ketones Good
Mechanical Properties
Element Value
Coefficient of friction 0.05-0.2
Hardness - Rockwell D50-55 - Shore
Poisson's ratio 0.46
Elongation at break( % ) 400
Tensile modulus( GPa ) 0.3-0.8
Izod impact strength( J m⁻¹ ) 160
Tensile strength( MPa ) Oct-40
Electrical Properties
Element Value
Dielectric constant @1MHz 2-2.1
Dissipation factor @ 1MHz 0.0003-0.0007
Dielectric strength( kV mm⁻¹ ) 50-170
Surface resistivity( Ohm/sq ) 10¹⁷
Volume resistivity( Ohmcm ) 10¹⁸-10¹⁹
Physical Properties
Element Value
Flammability V0
Radiation resistance Poor
Refractive index 1.38
Resistance to Ultra-violet Excellent
Limiting oxygen index( % ) 95
Water absorption - over 24 hours( % ) 0.01
Density( gcm⁻³ ) 2.2
Thermal Properties
Element Value
Heat-deflection temperature - 0.45MPa( C ) 120
Heat-deflection temperature - 1.8MPa( C ) 54
Lower working temperature( C ) -260
Upper working temperature( C ) 180-260
Specific heat( J K⁻¹ kg⁻¹ ) 1000
Thermal conductivity( W m⁻¹ K⁻¹ ) 0.25@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 100-160
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