Tetron B PTFE – Properties and Applications of Tetron B PTFE

TETRON B PTFE is the trade name for bronze-filled polytetrafluorethylene (PTFE). Bronze is a copper and tin alloy providing better creep resistance than most of the PTFE alloys. It is often used in hydraulic systems but is not suited to electrical applications. Bronze is also attacked by certain chemicals. The product has a dark brown colour, a non-oxidizing alloy is used for good appearance.

Applications of Tetron B PTFE

Typical applications of Dotmar Tetron B PTFE include:

  • Piston Rings (Compressors)
  • Bushes - Bearings
  • Gaskets
  • Seals - Hydraulic Systems

Physical Properties of Tetron B PTFE

Table 1. Physical properties of Dotmar Tetron B PTFE

Property

Value

Specific Gravity
g/cm3

3.9

Continuous Operating Temperature
°C

260

Tensile Strength

MPa

23

Impact Resistance

Izod ASTM D296 J/m

161

Hardness

Shore D

67

Co-efficient of Thermal Expansion

mm/(mmxK) x 10-6

MD=134

CD=132

Dielectric Strength

kV/mm

N/A

Surface Resistivity

Ohms

>1x1016

Flammability

Flash Point °C

530

Elongation

%

322

Co-Efficient of Friction

Test Method

Polish Steel 23°C

Static=0.09

Dynamic=0.13

FDA Approved

No

Available Forms of Tetron B PTFE

Table 2. Summary of the forms that Dotmar Tetron B PTFE can be delivered.

Form

Sizes

PTFE Rod

Diameter: 20-150mm

PTFE Sheet

Thickness: 3-50mm

Size: 610 x 610mm

PTFE Tube

Outside Diameter: 36 - 625 mm

Machined PTFE Parts

This information has been sourced, reviewed and adapted from materials provided by Dotmar EPP Pty Ltd.

For more information on this source, please visit Dotmar EPP Pty Ltd.

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