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Formula: FEP
Form: Rod
Material: Fluorinated ethylene propylene (FEP)
CAS Number: 25067-11-2
Commodity: Polymers
FEP Copolymer Rods are offered within our extensive range of polymer rods. Made from a fluoropolymer material, they come in 30 variations and provide properties like high chemical resistance, low friction and exceptional electrical insulation. These rod are used in chemical processing equipment linings, as well as wire and cable insulation in extreme environments. Their unique properties make FEP Copolymer Rods suitable for applications demanding durability against chemical corrosion along with electrical resistivity.
Tolerances
Rod
| Diameter | +20% / -10% |
|---|
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 | 0.27-0.67 |
| Hardness - Rockwell | R25-45, 60 Shore D |
| Poisson's ratio | 0.48 |
| Elongation at break( % ) | 150-300 |
| Tensile modulus( GPa ) | 0.5-0.6 |
| Izod impact strength( J m⁻¹ ) | 999999No Break |
| Tensile strength( MPa ) | 14-30 |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1MHz | 2.1 |
| Dissipation factor @ 1MHz | 0.0007 |
| Dielectric strength( kV mm⁻¹ ) | 20@3.2mm |
| Surface resistivity( Ohm/sq ) | 10¹⁶ |
| Volume resistivity( Ohmcm ) | 10¹⁸ |
Physical Properties
| Element | Value |
|---|---|
| Flammability | V0 |
| Radiation resistance | Poor |
| Refractive index | 1.344 |
| Resistance to Ultra-violet | Excellent |
| Limiting oxygen index( % ) | 95 |
| Water absorption( % ) | 0.01 |
| Density( gcm⁻³ ) | 2.15 |
Thermal Properties
| Element | Value |
|---|---|
| Heat-deflection temperature - 0.45MPa( C ) | 50 |
| Heat-deflection temperature - 1.8MPa( C ) | 70 |
| Lower working temperature( C ) | -250 |
| Upper working temperature( C ) | 150-200 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 1100 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.19-0.24@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 83-104 |
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