Ultra-High Molecular Weight Polyethylene Materials (UHMW) Data Sheet

||Ultra-High Molecular Weight Polyethylene Materials (UHMW) Data Sheet
Ultra-High Molecular Weight Polyethylene Materials (UHMW) Data Sheet2017-01-23T10:03:53+00:00

UHMW, or ultra-high-molecular-weight polyethylene, is a subset of the thermoplastic polyethylene. It features extremely long chains and as a result is a very tough material, with the highest impact strength of any thermoplastic presently made.

UltraPoly W1 Ceram-P
Mechanical ASTM Test Method Natural UHMW-PE Reinforced Wear Enhanced UHMW-PE Units
Strength to Weight Ratio - 3.1 2.9 ksi
Specific Gravity @73 F D792 0.93 0.96 -
Tensile Strength @73 F, (ult)/(yld) D638 2,900 (yld) 2,800 (yld) psi
Tensile Modulus of Elasticity @73 F D638 100,000 131,000 psi
Tensile Elongation at Break @73 F D638 300 (4@yld) 300 %
Flexural Strength @73 F D790 - - psi
Flexural Modulus of Elasticity @73 F D790 77,000 100,000 psi
Shear Strength @73 F D732 4,000 - psi
Comprehensive Strength, (% Deformation) @73 F D695 - - psi
Comprehensive Modulus of Elasticity @73 F D695 - - psi
Hardness, Rockwell, Scale as noted @73 F D785 (R64) - -
Hardness, Durometer, Shore D @73 F D2240 D68 - -
Izod Impact, (Notched) @73 F D256 Type A No Break 50.0 ft-lb/in of notch
Coefficient of Friction, (Dry vs Steel) Dynamic - 0.12 - -
Limiting PV, (with 4 to 1 factor of safety applied) - - - psi-ft/min
Thermal ASTM Test Method Natural UHMW-PE Reinforced Wear Enhanced UHMW-PE Units
Coefficient of Linear Thermal Expansion @73 F E-831 (TMA) 1.1 E-04 1.3 E-04 in/in/F
Heat Deflection Temperature @264 psi D648 114 - F
Tg-Glass transition termperature, (Amorphous) D3418 - - F
Melting Point, (VS=Vicat Softening Temp.) D3418 276 - F
Continuous Service Temperature in Air, (Max.) - - - F
Thermal Conductivity - - - BTU-in/hr-ft2-F
Electric ASTM Test Method Natural UHMW-PE Reinforced Wear Enhanced UHMW-PE Units
Dielectric Strength, Short Term D149 - 2,280 Volts/mil
Volume Resistivity D257 - >1E15 ohm-cm
Dielectric Constant @10E6 Hz D150 2.3 - 2.35 - -
Dissipation Factor @10E6 Hz D150 500.000 - -
Flammability @3.1 mm unless noted UL94 - - -
H2O ASTM Test Method Natural UHMW-PE Reinforced Wear Enhanced UHMW-PE Units
Water Absorption, Immersion, 24 hours D570(7) Nil Nil % by weight
Water Absorption, Saturation D570(7) Nil Nil % by weight