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Formula: PTFE
Form: Bar
Material: Polytetrafluoroethylene (PTFE)
CAS Number: 9002-84-0
Commodity: Polymers
Side Length:
12.6mm
Side Length (Of Longer Side):
4.7mm
PTFE Bar, composed of polytetrafluoroethylene, offers exceptional chemical resistance, low friction, and thermal stability, making it one of the most versatile engineering materials. Its non-stick, non-reactive properties enable applications in chemical processing, electrical insulation, and biomedical engineering. Industries use PTFE bars in gaskets, seals, valve seats, and dielectric components for high-frequency electronics. Research employs PTFE in tribological testing, composite reinforcement, and biomedical implant development, where its inertness and biocompatibility are critical. The bar form allows machining into custom components for fluid handling, wear parts, or insulating structures. With its combination of stability, durability, and adaptability across extreme environments, PTFE bars remain fundamental in aerospace, medical, and industrial applications requiring uncompromised performance.
Tolerances
Bar
| Side Length | =<10mm | ±10% |
|---|---|---|
| Side Length | >10mm | ±1mm |
| Side Length (Of Longer Side) | >10mm | ±1mm |
| Side Length (Of Longer Side) | =<10mm | ±10% |
| Length | <100mm | ±1mm |
| Length | >=100mm | +5% / -1% |
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 |
Other Customers Purchased
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Ruby Bar Ruby bar (Al₂O₃:Cr) offering hardness, wear resistance, and optical transparency. Used as alignment rods, wear guides, and optical mounts in metrology, laser assemblies, and jewel bearings.each
Starting at $630.00
Discounts applied for volume purchases -
PTFE Tube PTFE tube delivers chemical resistance, low friction, and thermal endurance for corrosive‑fluid transport, catheter tubing, high‑purity conduits, and research on microfluidics, frictionless transport, and solvent‑resistant heat‑exchange coils.each
Starting at $199.00
Discounts applied for volume purchases -
Magnetic Shape Memory Alloy Bar (Ni50/Mn28/Ga22 at%) Magnetic shape memory alloy bar (Ni50/Mn28/Ga22): ferromagnetic Heusler alloy with field‑induced reversible deformation via twin boundary motion. Used in fast actuators, micro‑robotics, and magnetocaloric devices; notable shape memory and superelasticity.each
Starting at $1,140.00
Discounts applied for volume purchases -
PTFE Rod PTFE rod offers non‑reactivity, dielectric strength, low friction, hydrophobicity, and thermal range −200 °C to +260 °C for aerospace seals, chemical insulators, implants, hydro‑generator bearings, semiconductor diffusers, and research on electrets and PTFE composites.each
Starting at $179.00
Discounts applied for volume purchases -
PTFE Balls PTFE balls provide chemical inertness, low friction, and thermal stability for non‑reactive check valves, low‑friction bearings, cryogenic flow components, food‑grade rollers, and research on tribology, thermal cycling, and chemically hostile motion systems.each
Starting at $194.00
Discounts applied for volume purchases -
PTFE Powder PTFE powder provides thermal stability, chemical inertness, ultra‑low friction, and fine‑particle processability for anti‑friction coatings, elastomer modifiers, oilfield components, dental materials, MEMS coatings, and research on nanocomposites and tribological fillers.each
Starting at $267.00
Discounts applied for volume purchases
