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Formula: POM-H
Form: Granule
Material: Polyoxymethylene Homopolymer (POMh)
CAS Number: 9002-81-7
Commodity: Polymers
Nominal Granule Size: 3mm
Color: Natural
POM Homopolymer Granules are an engineering thermoplastic suitable for a wide range of applications. Available in 13 variations, they offer excellent wear resistance, low moisture absorption and high dimensional stability. Typical uses include precision parts, bearings, gears, rollers and food processing equipment. The granular form allows flexibility in processing methods, like injection molding to create custom components. With its well-balanced mechanical properties and chemical resistance, POM Homopolymer Granules enable innovative design solutions across many industries.
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Material Properties for Polymers

Chemical Resistance
Element Value
Acids - concentrated Poor
Acids - dilute Poor - Fair
Alcohols Good-Fair
Alkalis Poor
Aromatic hydrocarbons Good
Greases and Oils Good
Halogenated Hydrocarbons Good-Poor(?)
Halogens Poor
Ketones Good - Fair
Mechanical Properties
Element Value
Coefficient of friction 0.2-0.35
Hardness - Rockwell M94
Poisson's ratio 0.35
Elongation at break( % ) 40-75
Tensile modulus( GPa ) 2.9-3.1
Izod impact strength( J m⁻¹ ) 75-130
Tensile strength( MPa ) 70
Electrical Properties
Element Value
Dielectric constant @1MHz 3.7
Dissipation factor @ 1MHz 0.005
Dielectric strength( kV mm⁻¹ ) 20
Surface resistivity( Ohm/sq ) 10¹⁵
Volume resistivity( Ohmcm ) 10¹⁵
Physical Properties
Element Value
Flammability HB
Radiation resistance Poor
Resistance to Ultra-violet Poor
Limiting oxygen index( % ) 15
Water absorption - equilibrium( % ) 0.6-0.9
Water absorption - over 24 hours( % ) 0.25
Density( gcm⁻³ ) 1.42
Thermal Properties
Element Value
Heat-deflection temperature - 0.45MPa( C ) 170
Heat-deflection temperature - 1.8MPa( C ) 135
Upper working temperature( C ) 80-120
Specific heat( J K⁻¹ kg⁻¹ ) 1500
Thermal conductivity( W m⁻¹ K⁻¹ ) 0.22-0.24@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 122

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