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Formula: POM-H
Form: Rod
Material: Polyoxymethylene Homopolymer (POMh)
CAS Number: 9002-81-7
Commodity: Polymers
We offer POM Homopolymer Rods in a choice of 42 variations. POM, which stands for polyoxymethylene, is a thermoplastic polymer known for its high strength, stiffness, hardness and creep resistance. These homopolymer rods have uniform properties and are ideal for use in parts that require precision machining, such as gears, rollers and bushings. With high fatigue endurance and low friction, our POM rods are suitable for repetitive motion and sliding applications across a wide temperature range in fields, like automotive, medical devices and consumer appliances.
Tolerances
Rod
| Diameter | +20% / -10% |
|---|
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 |
Other Customers Purchased
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Zinc/Aluminum Alloy Rod (Zn96/Al 4) Formula: Zn96/Al 4
Diameter: 20mm
Length: 500mm
UOM Code: 102-110-38
eachStarting at $299.54
Discounts applied for volume purchases -
Zirconium Rod Formula: Zr
Percentage Purity: 99.2%
Diameter: 1.5mm
Length: 500mm
CAS Number: 7440-67-7
UOM Code: 013-119-50
eachStarting at $188.97
Discounts applied for volume purchases -
POM Homopolymer Film Formula: Acetal - Homopolymer POMH
Thickness: 5mm
Length 1: 300mm
Length 2: 300mm
CAS Number: 9002-81-7
UOM Code: 029-323-65
eachStarting at $141.50
Discounts applied for volume purchases -
POM Copolymer Film Formula: Acetal - Copolymer POMC
Thickness: 1mm
Length 1: 1000mm
Length 2: 1000mm
UOM Code: 045-423-19
eachStarting at $143.13
Discounts applied for volume purchases -
Zinc Rod Formula: Zn
Percentage Purity: 99.999%
Diameter: 2mm
Length: 200mm
CAS Number: 7440-66-6
UOM Code: 001-562-48
eachStarting at $232.85
Discounts applied for volume purchases -
Zirconium Phosphate Machinable Ceramic Rod Formula: Ba Zr₄P₆O₂₄
Diameter: 12.7mm
Length: 127mm
UOM Code: 064-367-40
eachStarting at $940.24
Discounts applied for volume purchases
