UHMW (Ultra-High-Molecular-Weight Polyethylene)

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UHWM Characteristics

UHMW (ultra-high-molecular-weight polyethylene) offers a combination of exceptional properties. This thermoplastic material is tough with superior impact strength. It is corrosion-resistant and exhibits virtually no water absorption. It is also wear-resistant, non-sticking and self-lubricating.

UHMW is an excellent choice for many industrial applications. It reduces noise and vibration, is chemical-resistant and non-toxic and offers excellent mechanical properties even in cryogenic conditions. Characteristics include:

  • Non-toxichere to help 200
  • Low coefficient of friction
  • Corrosion, abrasion, wear and impact resistant
  • Extremely low water absorption
  • FDA and USDA approved

Applications for UHMW Thermoplastic

  • Chute linings
  • Food processing parts
  • Chemical tanks
  • Conveyor guides
  • Wear pads

Contact a Dielectric Manufacturing knowledge expert to discuss the use of UHMW polyethylene for fabrication of your plastic parts. Call 800-367-9122 or email sales@dielectricmfg.com.

UHMW Polyethylene Material Properties

Property Metricunits Englishunits
Density931 - 949kg/m^30.034lb/in^3
Yield Strength2.14e7 - 2.76e7Pa3.1 - 4.0ksi
Tensile Strength3.86e7 - 4.83e7Pa5.6 - 7.01ksi
Elongation3.5 -5.25% strain350 - 525% strain
Hardness (Vickers)6.28e7 - 8.14e7Pa6.4 - 8.3HV
Impact Strength (notched)9.52e4 - 1.05e5J/m^245.3 - 50ft.lbf/in^2
Fracture Toughness1.72e6 - 5.16e6Pa/m^0.51.56 - 4.69ksi/in^0.5
Young's Modulus8.94e8 - 9.63e8Pa0.13 - 0.1410^6 psi
Max Service Temperature110 - 130°C230 -266°F
Melting Temperature125 - 138°C257 - 280°F
Insulator or ConductorInsulatorInsulator
Specific Heat Capability1.75e3 - 1.81e3J/kg °C0.418 - 0.432BTU/lb. °F
Thermal Expansion Coefficient2.34e-4 - 3.6e-4strain/°C130 - 200µstrain/°F
CO2 Footprint3.16 - 3.49kg/kg3.16 - 3.49lb/lb
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