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Efalon® Bronze-filled B-60

1 of 7 products in this brand
Efalon® Bronze-filled B-60 is added in percentages of weight between 40 and 60%. PTFE Bronze filled has the best wear properties, remarkable compression strengths and good thermal conductivity, but poor electrical characteristics and chemical resistance. It is often used in hydraulic systems, particularly superb as linear bearings, e.g. slides, gibs, guide ways. The compound is easily machined. Bronze-filled is useful in applications which undergo high mechanical loads or high-speed rubbing contacts where the bronze filler supplies the strength and conductivity to carry away excess, unwanted heat.

Polymer Name: Polytetrafluoroethylene (PTFE)

Physical Form: Rods, Sheets, Tube

Features: Good Compressive Strength, Good Machinability, Good Thermal Conductivity, Low Deformation Tendency, Thermally Insulating, Wear Resistant

Density: 3800.0 - 4000.0 kg/m³

Technical Data Sheet
  • TypeDocument Name
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family

Fluoropolymers

Fillers Included

Bronze

Polymer Name

Polytetrafluoroethylene (PTFE)

Technologies

Plastics

Product Families

Plastics — Parts, Shapes & Films

Features & Benefits

Materials Features

Good Compressive Strength,

Good Machinability,

Good Thermal Conductivity,

Low Deformation Tendency,

Thermally Insulating,

Wear Resistant

Key Benefits
  • High resistance to deformation under load, wear and cold flow             
  • High heat insulation
  • Less chemical resistance compared to carbon and glass-filled Efalon®   
  • Easily processed mechanically

Applications & Uses

Markets

Industrial

Applications

Industrial — Chemical & Industrial Manufacturing

Equipment & Parts,

Other Industrial Applications

Plastics & Elastomers End Uses

Bearings,

Piston Rings,

Valve Parts

Applications
  • Bearings
  • Piston rings
  • Valve sets
  • Valve components

Properties

Physical Form

Rods,

Sheets,

Tube

Physical Properties
ValueUnitsTest Method / Conditions
Coefficient of Friction (Static)0.07--
Coefficient of Friction (Dynamic)0.13--
PV Limits (3 m/min)300 - 320kg.cm³.min-
PV Limits (30 m/min)390 - 400kg.cm³.min-
PV Limits (300 m/min)450 - 550kg.cm³.min-
Mechanical Properties
ValueUnitsTest Method / Conditions
Tensile Strength at Break140 - 220Kg/cm²D638
Total Deformation3.7 - 4.8%D621
Compressive Stress (%1 Deformation, 23°C)105 - 110Kg/cm²D695
Permanent Deformation1.5 - 2%D621
Elongation at Break (23°C)110 - 220%D638
Impact Resistance (Izod, Notched)10 - 11Kj/m²D256
Hardness65 - 70Shore DD2240
Total Deformation Under Weight (10 kg/cm² Load, 150°C, 24 hours)1 - 1.1%-
Total Deformation Under Weight (50 kg/cm² Load, 150°C, 24 hours)9 - 10%-
Typical Properties
ValueUnitsTest Method / Conditions
Density (23°C)3.8 - 4.0g/cm³D792
Thermal Properties
ValueUnitsTest Method / Conditions
Coefficient of Linear Thermal Expansion (25°C-100°C, [x10^-5])7.5 - 9°C-1D696
Coefficient of Linear Thermal Expansion (25°C-100°C, [x10^-5])10 -11.5°C-1D696
Coefficient of Linear Thermal Expansion (25°C-100°C, [x10^-5])13 - 14°C-1D696
Heat Conductivity (30°C, [x10^-4])17 - 20Cal/cm.sn.°C-
Maximum Allowable Service Temperature in Air - Continuous270°C-
Maximum Allowable Service Temperature in Air - Continuous-260°C-
Electrical Properties
ValueUnitsTest Method / Conditions
Surface Resistivity (23°C, RH 50%)min. 10^9OhmD257
Surface Resistivity (23°C, 50% RH)min. 10^9OhmD257
Volume Resistivity (23°C)min. 10^7Ohm-cmD257