PES Rod

PES Rod combines the high heat resistance, mechanical strength, and chemical durability of polyethersulfone in a rigid, machinable cylindrical form. It maintains structural integrity under prolonged exposure to hot water, steam, and aggressive chemicals, making it ideal for aerospace, medical, and chemical processing industries. Industries employ PES rods for precision-engineered pump components, autoclave-stable fixtures, and insulating parts in high-temperature electrical systems. Specific applications include chemical-resistant shafts in analytical instruments, high-precision spacers in aerospace assemblies, and sterilizable mechanical supports in surgical equipment. In research, PES rods are used to evaluate creep resistance under load, study thermal expansion in polymer engineering, and prototype high-performance parts for extreme environments. The combination of machinability, durability, and resistance to environmental stress ensures their continued utility in demanding technical and scientific contexts.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Rod

Diameter		+20% / -10%

Material Properties for Polymers

Chemical Resistance

Element	Value
Acids - concentrated	Good-Poor
Acids - dilute	Good
Alcohols	Good
Alkalis	Good
Aromatic hydrocarbons	Good
Greases and Oils	Good-Fair
Halogenated Hydrocarbons	Good
Halogens	Fair-Poor
Ketones	Good

Electrical Properties

Element	Value
Dielectric constant @1MHz	3.7
Dissipation factor @ 1MHz	0.003
Dielectric strength( kV mm⁻¹ )	16
Volume resistivity( Ohmcm )	10¹⁷

Physical Properties

Element	Value
Flammability	V-0 @ 0.4mm
Radiation resistance	Good-Fair
Refractive index	1.65
Resistance to Ultra-violet	Fair
Limiting oxygen index( % )	34-41
Water absorption - equilibrium( % )	2.2
Water absorption - over 24 hours( % )	0.4-1
Density( gcm⁻³ )	1.37

Mechanical Properties

Element	Value
Hardness - Rockwell	M88
Poisson's ratio	0.4
Elongation at break( % )	40-80
Tensile modulus( GPa )	2.4-2.6
Izod impact strength( J m⁻¹ )	85
Abrasive resistance - ASTM D1044( mg/1000 cycles )	6
Tensile strength( MPa )	70-95

Thermal Properties

Element	Value
Heat-deflection temperature - 0.45MPa( C )	260
Heat-deflection temperature - 1.8MPa( C )	203
Lower working temperature( C )	-110
Upper working temperature( C )	180-220
Thermal conductivity( W m⁻¹ K⁻¹ )	0.13-0.18@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	55