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LUBMER™ L4000 UHMWPE Granules

Grade: LUBMER™ L4000
Formula: UHMWPE, HMPE, HPPE
Form: Granule
Material: Ultra-high-molecular-weight polyethylene (UHMWPE, HMPE)
CAS Number: 9002-88-4
Commodity: Polymers
Nominal Granule Size: 3mm
LUBMER™ L4000 UHMWPE Granules from Goodfellow are ultra-high molecular-weight polyethylene granules available in 10 variations. An engineering thermoplastic, they offer high abrasion resistance, low friction, and good chemical resistance. LUBMER™ L4000 UHMWPE Granules are commonly used in applications that are prone to wear such as chute and hopper linings, as well as bearings and spacers. With excellent mechanical properties, this versatile material can suit many industrial needs across a range of industries.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Material Properties for Polymers

Chemical Resistance
Element Value
Acids - concentrated Good-Fair
Acids - dilute Good
Alcohols Good
Alkalis Good
Aromatic hydrocarbons Fair
Greases and Oils Good-Fair
Halogenated Hydrocarbons Fair-Poor
Halogens Fair-Poor
Ketones Good-Fair
Mechanical Properties
Element Value
Coefficient of friction 0.1-0.2
Hardness - Rockwell R50-70
Poisson's ratio 0.46
Elongation at break( % ) 500
Tensile modulus( GPa ) 0.2-1.2
Izod impact strength( J m⁻¹ ) 1000
Tensile strength( MPa ) 20-40
Electrical Properties
Element Value
Dielectric constant @1MHz 2.3
Dissipation factor @ 1MHz 1-10x 10⁻⁴
Dielectric strength( kV mm⁻¹ ) 28
Surface resistivity( Ohm/sq ) 10¹³
Volume resistivity( Ohmcm ) 10¹⁸
Physical Properties
Element Value
Flammability HB
Radiation resistance Fair
Resistance to Ultra-violet Poor
Limiting oxygen index( % ) 17
Water absorption - over 24 hours( % ) 0.01
Density( gcm⁻³ ) 0.94
Thermal Properties
Element Value
Heat-deflection temperature - 0.45MPa( C ) 69
Heat-deflection temperature - 1.8MPa( C ) 42
Upper working temperature( C ) 55-95
Specific heat( J K⁻¹ kg⁻¹ ) 1900
Thermal conductivity( W m⁻¹ K⁻¹ ) 0.42-0.51@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 130-200

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