- Materials
- Forms
-
Services
-
Services
-
-
Sectors
-
Supporting cutting edge research and development with advanced materials to your needs.
High performance materials for extreme conditions.
Innovative and lightweight materials with high mechanical properties and durability.
Materials used in chemical engineering from consumables to innovative solutions.
Advanced materials characterized by high electrical or insulation performance.
High quality materials for renewable energy.
Biocompatible and biodegradable materials to the highest standards.
High purity, biocompatible materials for high performance devices and applications.
High purity metals and alloys in various forms and crucibles suitable to your needs.
State of the art materials for the next generation of technologies.
High performance materials for extreme conditions.
Durable materials for corrosive environments.
Foils, disks or windows across a range of materials to facilitate your innovation.
Polymers, metal foils, and sustainable materials for your packaging needs.
Your requirements for unique products and attributes will be met across our 170,000+ product range and customization capabilities.
High-quality materials across branded products in various forms including rods, wires, and foils support space technology needs.
Highest quality materials to support your need for small-quantity specialist materials such as graphite and lithium compounds.
High purity materials to improve the reproducibility and reliability of your evaporation processes.
Academia Aerospace & Aeronautical Automotive Chemical Manufacturing Electronics and Bioelectronics Fuel Cells & Hydrogen Life Science and Biomaterials Storage & Batteries Vacuum Technology Mining and Metals Nanomaterials Nuclear Oil & Gas Optics Packaging Research & Labs Space Technology Medical Devices
-
-
Resources
-
Find out our latest news.
Read our latest insights, and opinions.
Discover our Innovation Discovered podcasts on innovation, products, interesting topics, and more.
Find out how we've worked with our partners
Our latest updates on what we are doing, find out more.
Find out more about us and the great roles we have available for talented individuals. Find out more.
Take a look at our global distributors.
Explore our FAQ resource to help answer your key questions.
Gain a clearer picture of the language used in scientific study
-
- About Us
Toggle Nav
Formula: POM-C
Form: Ball/Sphere
Material: Polyoxymethylene Copolymer (POMc)
Commodity: Polymers
Goodfellow offers a range of POM Copolymer Balls in various quantities. POM, or polyoxymethylene, is a high-performance thermoplastic known for its excellent dimensional stability, low friction, and high rigidity. These precision polymer balls provide uniform, near-perfect sphericity. Their outstanding wear resistance makes them ideal for applications in food processing equipment, conveying systems, and precision ball bearings. With Goodfellow's selection of POM Copolymer Balls, engineers can find the right fit for projects demanding precision, low friction, and chemical resistance.
Tolerances
Ball/Sphere
| Diameter | Standard | ±5% |
|---|---|---|
| Diameter | Precision | See Item |
Material Properties for Polymers
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Poor |
| Acids - dilute | Good-Fair |
| Alcohols | Good-Fair |
| Alkalis | Good |
| Aromatic hydrocarbons | Good |
| Greases and Oils | Good |
| Halogenated Hydrocarbons | Good-Poor |
| Halogens | Poor |
| Ketones | Good - Fair |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1MHz | 3.7-4.4 |
| Dissipation factor @ 1MHz | 0.006-0.18 |
| Dielectric strength( kV mm⁻¹ ) | 20@2.3mm |
| 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( % ) | 0.6-0.8 |
| Water absorption - over 24 hours( % ) | 0.2-0.25 |
| Density( gcm⁻³ ) | 1.41 |
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Rockwell | M80 |
| Poisson's ratio | 0.35 |
| Elongation at break( % ) | 15-40 |
| Tensile modulus( GPa ) | 2.3-2.8 |
| Izod impact strength( J m⁻¹ ) | 70-80 |
| Tensile strength( MPa ) | 60-70 |
Thermal Properties
| Element | Value |
|---|---|
| Heat-deflection temperature - 0.45MPa( C ) | 160 |
| Heat-deflection temperature - 1.8MPa( C ) | 110 |
| Lower working temperature( C ) | -40 |
| Upper working temperature( C ) | 80-120 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 1500 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.23-0.3@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 80-120 |
Other Customers Purchased
-
ESD 90 POM Copolymer Rod Grade: ESD 90
Formula: Acetal - Copolymer POMC
Diameter: 25mm
Length: 50mm
Colour: Natural
UOM Code: 116-191-21
eachStarting at $159.38
Discounts applied for volume purchases -
POM Copolymer Rod Formula: Acetal - Copolymer POMC
Diameter: 25mm
Length: 500mm
Colour: Natural
UOM Code: 037-076-70
eachStarting at $154.40
Discounts applied for volume purchases -
POM Homopolymer Rod Formula: Acetal - Homopolymer POMH
Diameter: 100mm
Length: 200mm
Colour: White
CAS Number: 9002-81-7
UOM Code: 057-550-91
eachStarting at $145.35
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 -
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 -
Alumina Balls
Formula: Al₂O₃
Quantity: 10 Pcs
Type: Non-Precision Sphere
Sphericity: Nominal
CAS Number: 1344-28-1
UOM Code: 439-337-21eachStarting at $117.65
Discounts applied for volume purchases
