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Formula: PVDF
Form: Nut
Material: Polyvinylidene fluoride (PVDF)
CAS Number: 24937-79-9
Commodity: Polymers
PVDF Nut offers high resistance to chemical attack, thermal endurance, and low moisture absorption, making it a reliable fastening solution for demanding environments. Constructed from polyvinylidene fluoride, it combines insulating capacity with mechanical strength, ensuring compatibility with corrosive fluid systems, electronic assemblies, and biomedical instruments. Industries including chemical processing, water treatment, and electronics use PVDF nuts to securely fasten components where metal alternatives would corrode or contaminate sensitive systems. Specific uses include securing pipeline fittings in corrosive liquid transfer systems, fastening instrumentation panels in cleanrooms, and supporting mechanical-electrical interfaces in experimental devices. In research, PVDF nuts provide reliable performance in test assemblies requiring chemically inert and mechanically stable fastening. Their lightweight, insulating nature further supports integration into advanced sensor prototypes and biomedical implants. By merging functional robustness with electroactive potential, PVDF nuts contribute critically to industrial resilience and next-generation scientific innovation.
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Tolerances

Nut
Size See Item

Material Properties for Polymers

Chemical Resistance
Element Value
Acids - concentrated Good
Acids - dilute Good
Alcohols Good
Alkalis Fair
Aromatic hydrocarbons Good
Greases and Oils Good
Halogenated Hydrocarbons Good-Fair
Halogens Good-Poor
Mechanical Properties
Element Value
Coefficient of friction 0.2-0.4
Hardness - Rockwell R77-83
Poisson's ratio 0.34
Elongation at break( % ) 50
Tensile modulus( GPa ) 01-Mar
Izod impact strength( J m⁻¹ ) 120-320
Abrasive resistance - ASTM D1044( mg/1000 cycles ) 24
Tensile strength( MPa ) 25-60
Electrical Properties
Element Value
Dielectric constant @1MHz 8.4
Dissipation factor @ 1kHz 0.06
Dielectric strength( kV mm⁻¹ ) 13
Surface resistivity( Ohm/sq ) 10¹³
Volume resistivity( Ohmcm ) 10¹⁴
Physical Properties
Element Value
Flammability V0
Radiation resistance Fair
Refractive index 1.42
Resistance to Ultra-violet Excellent
Limiting oxygen index( % ) 44
Water absorption - over 24 hours( % ) 0.04
Density( gcm⁻³ ) 1.76
Thermal Properties
Element Value
Heat-deflection temperature - 0.45MPa( C ) 120-150
Heat-deflection temperature - 1.8MPa( C ) 80-115
Lower working temperature( C ) -40
Upper working temperature( C ) 135-150
Thermal conductivity( W m⁻¹ K⁻¹ ) 0.1-0.25@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 80-140

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