UHMWPE Rod

UHMWPE Rod provides exceptional impact resistance, wear durability, and chemical inertness, making it a key material for both biomedical and industrial uses. Manufactured from ultra-high molecular weight polyethylene, the rod form offers machinability into custom components while retaining low friction and high resilience. Industries such as medical technology, marine, and food processing employ UHMWPE rods for orthopedic components, bearing and bushing parts, and chemically inert processing tools. Specific applications include spinal implant prototypes, wear-resistant bushings in mechanical systems, and cutting boards for hygienic food industry use. In research, UHMWPE rods are studied for surface functionalization, fatigue resistance, and tribological performance under variable loads. Their combination of bio-inertness, toughness, and chemical stability ensures enduring relevance in both industrial engineering and cutting-edge biomedical innovation.

Quick Links:

Tolerance

Properties

Reference & Citations

each

Tolerances

Rod

Diameter		+20% / -10%

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