10% carbon-filled Teflon balls combine the inherent properties of Teflon (PTFE) with enhanced mechanical and thermal characteristics due to the carbon filler. These balls exhibit high density (2.25 g/cm³), moderate hardness (Shore 63), and impressive elongation at break (180%). Their tensile strength (15 MPa) and compressive strength (100 MPa) make them suitable for load-bearing applications. The carbon filler improves wear resistance and reduces friction (dynamic: 0.12–0.14; static: 0.14–0.16). They operate across extreme temperatures (-328°F to 500°F) and resist chemicals, water, and corrosion. Their machinability, dielectric properties (dielectric constant: 2.1), and low water absorption (0.01%) further broaden their industrial utility.
Key Points Explained:
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Mechanical Properties
- Density: 2.25 g/cm³ (higher than unfilled Teflon due to carbon).
- Hardness: Shore 63 (improved wear resistance vs. unfilled PTFE’s Shore 55D).
- Tensile Strength: 15 MPa (~2,175 psi; lower than unfilled PTFE’s 2,990–4,970 psi but balanced by other enhancements).
- Compressive Strength: 100 MPa (excellent for sealing under pressure).
- Elongation at Break: 180% (retains Teflon’s ductility despite filler).
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Friction and Wear
- Dynamic Coefficient: 0.12–0.14 (lower than unfilled PTFE’s 0.11, reducing energy loss in moving parts).
- Static Coefficient: 0.14–0.16 (prevents stick-slip in seals/bearings).
- Carbon filler reduces abrasion, extending service life in high-wear environments.
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Thermal Performance
- Operating Range: -328°F to 500°F (-200°C to 260°C; wider than many polymers).
- Melting Point: 621°F (327°C; same as unfilled PTFE, but carbon raises heat deflection temperature).
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Chemical and Environmental Resistance
- Inertness: Resists caustics, solvents, and UV degradation.
- Waterproof/Non-porous: 0.01% water absorption (ideal for humid/chemical exposure).
- Corrosion Resistance: Suitable for harsh industrial fluids.
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Electrical and Machining Properties
- Dielectric Constant: 2.1 (maintains PTFE’s electrical insulation).
- Machinability: Easily molded or machined into custom sizes/shapes.
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Applications
- Seals/Valves: Combines low friction, chemical resistance, and compressive strength.
- Bearings: Carbon reduces wear in dynamic systems.
- Electrical Components: Dielectric properties suit insulators.
For purchasers, these properties make 10% carbon-filled Teflon balls a cost-effective upgrade over unfilled PTFE in high-stress or high-wear scenarios, balancing performance and durability.
Summary Table:
| Property | Value/Range | Benefit |
|---|---|---|
| Density | 2.25 g/cm³ | Higher strength due to carbon filler |
| Hardness (Shore) | 63 | Improved wear resistance vs. unfilled PTFE |
| Tensile Strength | 15 MPa (~2,175 psi) | Balanced for load-bearing applications |
| Compressive Strength | 100 MPa | Excellent for sealing under pressure |
| Elongation at Break | 180% | Retains ductility despite filler |
| Dynamic Friction | 0.12–0.14 | Reduces energy loss in moving parts |
| Static Friction | 0.14–0.16 | Prevents stick-slip in seals/bearings |
| Operating Temperature | -328°F to 500°F (-200°C to 260°C) | Wider range than many polymers |
| Water Absorption | 0.01% | Ideal for humid/chemical environments |
| Dielectric Constant | 2.1 | Maintains electrical insulation properties |
Upgrade your industrial components with 10% carbon-filled Teflon balls — engineered for durability, low friction, and extreme environments. At KINTEK, we specialize in precision PTFE solutions for semiconductors, medical devices, and heavy industry. Whether you need standard sizes or custom fabrication, our expertise ensures optimal performance. Contact us today to discuss your project requirements or request a quote!