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Formula: PSu
Form: Disk
Material: Polysulfone (PSU)
CAS Number: 25135-51-7
Commodity: Polymers
The PSU Disk is a type of polymer material we offer in a range of 30 diameters and thicknesses. Known for good tensile strength, chemical resistance and dimensional stability, Polysulphone can be utilized for scientific instrumentation, medical devices and consumer products. The versatility of PSU disks makes them suitable for prototyping, R&D and small-scale manufacturing across industries.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Tolerances

Disk
Thickness ±20%

Material Properties for Polymers

Chemical Resistance
Element Value
Acids - concentrated Fair
Acids - dilute Good
Alcohols Good
Alkalis Good
Aromatic hydrocarbons Fair
Greases and Oils Good
Halogens Good
Ketones Poor
Electrical Properties
Element Value
Dielectric constant @1kHz 3.14
Dielectric constant @1MHz 3.1
Dissipation factor @ 1kHz 0.0013
Dissipation factor @ 1MHz 0.005
Dielectric strength( kV mm⁻¹ ) 17
Volume resistivity( Ohmcm ) 5x10¹⁶
Physical Properties
Element Value
Flammability HB
Radiation resistance Good
Resistance to Ultra-violet Poor
Limiting oxygen index( % ) 30
Water absorption( % ) 0.4
Water absorption - equilibrium( % ) 0.85
Density( gcm⁻³ ) 1.24
Mechanical Properties
Element Value
Hardness - Rockwell M91
Elongation at break( % ) 50-100
Tensile modulus( GPa ) 2.48
Izod impact strength( J m⁻¹ ) 69
Tensile strength( MPa ) 70
Thermal Properties
Element Value
Heat-deflection temperature - 1.8MPa( C ) 174
Upper working temperature( C ) 150-180
Thermal conductivity( W m⁻¹ K⁻¹ ) 0.26
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 56

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