MatWeb - Material Property Data Advertise with MatWeb!     Register Now
Data sheets for over 180,000 metals, plastics, ceramics, and composites.
MatWeb - Material Property Data HOME  •   SEARCH  •   TOOLS  •   SUPPLIERS  •   FOLDERS  •   ABOUT US  •   FAQ  •   LOG IN    
Recently Viewed Materials (most recent at top)  

Login to see your most recently viewed materials here.

Or if you don't have an account with us yet, then click here to register.

  Searches:   Advanced  | Category  | Property  | Metals  | Trade Name  | Manufacturer  | Recently Viewed Materials
  

Rulon Bearings

Dalau Dalcon 021 75% Virgin PTFE, 25% Carbon Coke
Categories: Polymer; Thermoplastic; Fluoropolymer; Polytetrafluoroethylene (PTFE)

Material Notes: Applications & Industries:
General: Carbon / Coke (soft) filler is good in dry running conditions, adds to the creep resistance, increases the hardness and raises the thermal conductivity of PTFE; Carbon / Coke (soft) compounds have good wear properties, but has low tool wear during machining, thus allowing machining to very close tolerances; Carbon / Coke (soft) compounds have some electrical conductivity and are therefore antistatic; and Carbon filled compounds when combined with graphite, have excellent wear properties. The combination of the above properties makes carbon / graphite compounds the preferred material for non - lubricated piston rings.
Chemical: Dynamic & shaft seals and Seals & gaskets. Flat gaskets are used to seal flanges in pipelines.
Construction: Bridge bearings. Slide bearings.
Engineering: Anti - friction bearing cages & bearing plates; Bearings, bushes, shaft bearings / seals (in combustion engines); Film bearings. Multi - layer composite bearings. Fabric bearings; Laboratory equipment. Measuring & control technology; Pipe supports. Expansion bellows. Glandless valves & pumps, valve seats; Piston rings in hydraulic systems and compressors; and Piston rod packings used in compressor plunger pumps & valves.

CHEMICAL RESISTANCE: The strength of the carbon - fluorine bond and the shielding of the carbon chains by the fluorine atoms result in a chemical inertness which is virtually universal, except alkali metals, fluorine under certain conditions, some fluorine compounds & halogen gases at elevated temperatures. Carbon / Coke is a good inert filler, except in oxidising environments where glass performs better. Resistant to hydrofluoric acid.

Information provided by Dalau

Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 2.05 - 2.13 g/cc0.0741 - 0.0770 lb/in³BS2782:Pt6
Deformation  4.8 %
@Time 3600 sec,
Pressure 14.2 MPa
4.8 %
@Time 1.00 hour,
Pressure 2060 psi
ASTM D621
 6.6 %
@Pressure 14.2 MPa,
Time 86400 sec
6.6 %
@Pressure 2060 psi,
Time 24.0 hour
ASTM D621
 6.6 %
@Time 3600 sec,
Pressure 5.00 MPa
6.6 %
@Time 1.00 hour,
Pressure 725 psi
150°C; ASTM D621
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D 70 - 7270 - 72ASTM D2240
Tensile Strength 12.0 - 25.0 MPa1740 - 3630 psiMolding Direction; BS2782:Pt3
Elongation at Break 50 - 250 %50 - 250 %Molding Direction; BS2782:Pt3
Flexural Yield Strength 10.3 MPa
@Strain 0.2 %
1490 psi
@Strain 0.2 %
ASTM D790
Flexural Modulus 1.09 GPa158 ksiASTM D790
Compressive Strength  2.30 MPa
@Strain 0.2 %,
Temperature 150 °C
334 psi
@Strain 0.2 %,
Temperature 302 °F
ASTM D695
 9.13 MPa
@Strain 0.2 %,
Temperature 23.0 °C
1320 psi
@Strain 0.2 %,
Temperature 73.4 °F
ASTM D695
 
Thermal PropertiesMetricEnglishComments
Thermal Conductivity 0.580 W/m-K4.03 BTU-in/hr-ft²-°FMolding Direction; ASTM C177
Melting Point 327 °C621 °FASTM D3417
Maximum Service Temperature, Air 260 °C500 °F
 300 °C572 °FShort Periods
Minimum Service Temperature, Air -200 °C-328 °F
Flash Point 630 °C1170 °FASTM D1929
Oxygen Index 98 - 100 %98 - 100 %ASTM D2863
 
Descriptive Properties
ColorBlack

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

Users viewing this material also viewed the following:
Dalau Dalcon 086 100% Virgin PTFE modified polymer
Polynt HUP 29/25 RB-1090
Dalau Dalcon 025 75% Virgin PTFE, 25% Glass Fiber, Blue
Dalau Dalcon 020 Virgin PTFE, Carbon (Anti-Static)
Dalau Dalcon 018 85% Virgin PTFE, 15% Graphite

PDALAU005 / 132993

Aluminum Castings

Please read our License Agreement regarding materials data and our Privacy Policy. Questions or comments about MatWeb? Please contact us at info@matweb.com. We appreciate your input.

The contents of this web site, the MatWeb logo, and "MatWeb" are Copyright 1996-2025 by MatWeb, LLC. MatWeb is intended for personal, non-commercial use. The contents, results, and technical data from this site may not be reproduced either electronically, photographically or substantively without permission from MatWeb, LLC.