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Ultra High Molecular Weight Polyethylene (UHMWPE)

Alternative and trade names
GUR®, Utec®
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Description

It is an Ultra-High Molecular Weight Polyethylene (UHMWPE) which the molecular weight is about 10 times greater than High Density Polyethylene (HDPE) resins and its density makes finished parts approximately eight times lighter than steel. This extremely high molecular weight provides several outstanding properties, such as:


  • High abrasion wear resistance
  • High impact resistance
  • Very low coefficient of friction that makes the material self-lubricating

  • An impact modified polymer. Food contact approved grades are available

    Ashby charts

    See where Ultra High Molecular Weight Polyethylene (UHMWPE) falls on the material property chart for Density against Elastic modulus in your materials selection and design process. Our Ashby charts are interactive with more technical data upon clicking. Sign up to get access to this premium feature for free.

    Properties

    General

    Density

    ρ

    0.93 - 0.94 g/cm³ at 20 °C

    Thermal

    Coefficient of thermal expansion

    α

    1.5E-4 - 2E-4 1/K at 20 °C

    Flammability

    UL 94 HB

    Max service temperature, long

    Tmaxlong

    80 - 90 °C

    Max service temperature, short

    100 - 120 °C

    Melting point

    Tm

    130 - 135 °C

    Specific heat capacity

    cp

    2000 J/(kg·K) at 20 °C

    Thermal conductivity

    λ

    0.4 W/(m·K) at 20 °C

    Electrical

    Dielectric constant

    εr

    2 - 3 [-] at 20 °C

    Electrical resistivity

    ρel

    1.00E+12 - 1.00E+15 Ω·m at 20 °C

    Optical

    Transparency

    no

    Technological properties

    Application areas

    Surgical implants, protheses, screw conveyors, pulleys, gears, bushings, rolls

    Processing Tag

    Processing methods

    Extrusion

    This material data has been provided by M-Base.

    All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
    Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.