HDPE Balls

Formula: HDPE

Form: Ball/Sphere

Material: High Density Polyethylene (HDPE)

CAS Number: 9002-88-4

Commodity: Polymers

Diameter: 31.75mm

Color: Natural

HDPE Balls are high density polyethylene spherical products offered by Goodfellow in a range of quantities. HDPE is known for its high strength-to-density ratio, chemical resistance, and low moisture absorption. These properties make HDPE balls ideal for applications like flow sensors, bearings, and ball valves across industries including food processing, pharmaceuticals, and petrochemicals. With over 15 quantities available, Goodfellow's HDPE balls provide versatile solutions for prototyping, research, and production.

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Technical Data Sheet Safety Data Sheet Tolerance Properties

each

Tolerances

Ball/Sphere

Diameter	Standard	±5%
Diameter	Precision	See Item

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	0.29
Hardness - Rockwell	D60-73 - Shore
Poisson's ratio	0.46
Tensile modulus( GPa )	0.5-1.2
Izod impact strength( J m⁻¹ )	20-210
Tensile strength( MPa )	15-40

Electrical Properties

Element	Value
Dielectric constant @1MHz	2.3-2.4
Dissipation factor @ 1MHz	1-10x 10⁻⁴
Dielectric strength( kV mm⁻¹ )	22
Surface resistivity( Ohm/sq )	10¹³
Volume resistivity( Ohmcm )	10¹⁵-10¹⁸

Physical Properties

Element	Value
Flammability	HB
Radiation resistance	Fair
Refractive index	1.54
Resistance to Ultra-violet	Poor
Limiting oxygen index( % )	17
Water absorption - over 24 hours( % )	0.01
Density( gcm⁻³ )	0.95

Thermal Properties

Element	Value
Heat-deflection temperature - 0.45MPa( C )	75
Heat-deflection temperature - 1.8MPa( C )	46
Upper working temperature( C )	55-120
Specific heat( J K⁻¹ kg⁻¹ )	1900
Thermal conductivity( W m⁻¹ K⁻¹ )	0.45-0.52@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	100-200

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HDPE Balls

Tolerances

Material Properties for Polymers