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PTFE Seals
PTFE Seals
PEEK (Polyetheretherketone) is a high-performance engineering thermoplastic known for its excellent mechanical and thermal properties. It is FDA food contact compliant, exhibits excellent wear and friction behavior, and has low permeability and abrasion on soft metal surfaces. PEEK maintains good dimensional stability at high temperatures and offers good electrical strength, high mechanical strength, stiffness, and creep resistance. It is also fatigue resistant, flame retardant, and exhibits excellent chemical resistance. Additionally, PEEK is resistant to high energy radiation and can be sterilized by radiation and heat.
- Density (Specific Gravity): 1.30 - 1.32 g/cm3 (ASTM D-792)
- Water Absorption (Max.): 0.1% over 24 hours (ASTM D-570)
- Flammability: V-0
- Tensile Strength: ≥95 MPa (ASTM D-638)
- Elongation at Break: ≥10% (ASTM D-638)
- Tensile Modulus: 3.3 - 4 GPa (ASTM D-638)
- Hardness: Shore D ≥80 (ASTM D-2240), Rockwell M scale ≥90 (ASTM D785)
- Peak Melting Temperature: 340-343°C (ASTM D-3418)
- Specific Heat Capacity at 23°C: 2.2 kJ/kg°C
- Thermal Conductivity at 23°C: 0.25 W/mK (ASTM E-1530)
- Deflection Temperature at 1.8MPa unannealed: 157°C (ASTM D-648)
- Relative Thermal Index - Electrical: 260°C (UL746B)
- Relative Thermal Index - Mechanical without impact: 240°C (UL746B)
- Relative Thermal Index - Mechanical with impact: 180°C (UL746B)
- Dielectric Strength (2mm thick): 22 kV/mm (ASTM D-149)
- Surface Resistivity: >1017 ohm (ASTM D-258)
- Volume Resistivity: >1017 ohm cm (ASTM D-257)
The data provided are typical values intended for reference and comparison purposes only. They should not be used as a basis for design specifications or quality control. Testing under individual application circumstances is recommended.
Catalog excerpts
• High mechanical strength, stiffness and creep resistance • Fatigue resistant • Flame retardant • Excellent chemical resistance • High energy radiation resistant • Radiation and heat sterilizable Shenzhen Dechengwang Technology Co., Ltd Floor 2-3, Bld D, Jinhengrun Industrial Park, Xintang, Guanlan, Longhua District, Shenzhen, CN 518110 • FDA food contact compliant • Excellent wear & friction behavior • Low abrasion at the counterpart surface of soft metal • Good dimensional stability at high temperature • Good electrical strength Physical properties *The data stated above are typical values intended for reference and comparison purposes only. *The data should not be used as a basis for design specifications or quality control. *The information is provided as a guide to the best of our knowledge and given without obligation or liability. *Testing under individual application circumstances is recommended.
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