China Leading Mechanical Seals Manufacturer

3091.PTFE-01/Physical Property

Type: Sealing Parts
Material: PTFE

Product descripton

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 PTFE Physical Property
Name Unit(kg/m³) Numerial Value
Density kg/m³ 2.10-2.30×10³
Crystallinity % Resin 93-97
Quenching Produtcts 50-65
No Quenching Products 63-85
Melting Point 3   27
Distortion Temperture 55
Vicat Softening Point 110
Thermal Decomposition ≥415
Coefficient of Linear Expansion(Apeak to Pressure dirction)) 1/℃ 20-60℃     10.3×10
20-100℃     10.5×10
20-150℃     11.4×10
20-200℃     12.8×10
Thermal Condutivity W/m.K 0.256
Poisson Ratio(25℃)   0.4
Refraltive Index % 1.37
Water Absorption   ≤0.01
Water Contact Angle   114°-115°
Face Expansion Force N/Cm 18.5×10
Dielectric Constant(10H2)   ≤1.8-2.2
Volume Resistivity Ω m ≥1×10
Face Resistivity Ω ≥10
Arc-Resistance S ≥300
Tensile Strength Mpa 27.6
Breaking Strength % 238
Elastic Modulus Mpa 280
Compressive Strength Mpa 12.9
Impact Strength(Gap) KJ/m 2
Bending Strength Mpa 20.7
Flexural Modulus Mpa 700
Frection Coefficient  Load 2MPa,Time 30mm 0.11
Wear Figurel mg 249
Wear Scar Width mm 15.8

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