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Certifications ISO 13485:2016 | AS9100D | ITAR | FDA Registered | CAGE Code 5TTR7 

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  1. Materials
  2. PSU
PSU
Temperature Range, Strength, Stiffness

PSU for CNC Machining

PSU is a high-temperature, amber-colored, semi-transparent plastic with excellent mechanical properties. Polysulfone withstands degradation from hot water and steam, making it ideal for applications that require frequent sterilization.

Please note

The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control.

Design Tip

To minimize costs, reduce the number of part setups, inspection dimensions, or strict tolerances, and avoid deep pockets with small radii.

Hardness

Material hardness is based on the Rockwell Hardness Scale.

View spec sheet

Heat-resistant, translucent plastic with excellent mechanical characteristics

Polycarbonate

Polysulfone, often referred to as PSU, is a high temperature, amber colored, semi-transparent plastic material with good mechanical properties. It's resistant to degradation from hot water and steam and it is commonly used in applications where repeated sterilization is required, such as the medical industry. 

PSU can be used as an alternative to polycarbonate or acrylic for applications requiring high temperature performance or exposure to hot water and steam.

Performance Characteristics

  • Resists hydrolysis in elevated temperatures
  • Strong and stiff
  • Semi-transparent

Common Brands

  • Sustason PSU
  • TECASON S

PSU Properties

  • Mechanical Properties
  • Thermal Properties
  • Electrical Properties
  • Optical Properties
  • Mechanical Properties

    Tensile Strength 10,200 psi
    Tensile Modulus of Elasticity 360,000 psi
    Tensile Elongation 50 - 100%
    Flexural Strength 15,400 psi
    Flexural Modulus of Elasticity 390,000 psi
    Compressive Strength 13,900 psi
    Hardness (Rockwell) R125
    Izod Impact 1.3 ft-lbs/in

  • Thermal Properties

    Coefficient of Linear Thermal Expansion 3.1 in/in/°F x 10-5
    Heat Deflection Temperature (66 psi/264 psi) 358 / 345 °F
    Max Continuous Service Temperature in Air 285 °F

  • Electrical Properties

    Dielectric Strength 425 V/mil

  • Optical Properties

    Light Transmittance -- %
    Haze -- %