- Materials
- Forms
- Reference Materials
-
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.
-
- Product Ranges
-
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
Polypropylene Balls
Available Configurations
Properties common to all products in this list
Starting at
$152.00
each
No Minimum order
Free technical support
*Free delivery worldwide
Material Properties
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Good-Fair |
| Acids - dilute | Good-Fair |
| Alcohols | Good |
| Alkalis | Good |
| Aromatic hydrocarbons | Fair |
| Greases and Oils | Good-Fair |
| Halogenated Hydrocarbons | Good-Poor |
| Halogens | Poor |
| Ketones | Good |
Mechanical Properties
| Element | Value |
|---|---|
| Coefficient of friction | 0.1-0.3 |
| Hardness - Rockwell | R80-100 |
| Elongation at break( % ) | 150-300, for biax film >50 |
| Tensile modulus( GPa ) | 0.9-1.5, for biax film 2.2-4.2 |
| Izod impact strength( J m⁻¹ ) | 20-100 |
| Abrasive resistance - ASTM D1044( mg/1000 cycles ) | 13-16 |
| Tensile strength( MPa ) | 25-40, for biax film 130-300, |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1MHz | 2.2-2.6 |
| Dissipation factor @ 1MHz | 0.0003-0.0005 |
| Dielectric strength( kV mm⁻¹ ) | 30-40 |
| Surface resistivity( Ohm/sq ) | 10¹³ |
| Volume resistivity( Ohmcm ) | 10¹⁶-10¹⁸ |
Physical Properties
| Element | Value |
|---|---|
| Flammability | HB |
| Radiation resistance | Fair |
| Refractive index | 1.49 |
| Resistance to Ultra-violet | Poor |
| Limiting oxygen index( % ) | 18 |
| Water absorption - equilibrium( % ) | 0.03 |
| Density( gcm⁻³ ) | 0.9 |
Thermal Properties
| Element | Value |
|---|---|
| Heat-deflection temperature - 0.45MPa( C ) | 100-105 |
| Heat-deflection temperature - 1.8MPa( C ) | 60-65 |
| Lower working temperature( C ) | 50 |
| Upper working temperature( C ) | 90-120 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 1700-1900 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.1-0.22@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 100-180 |
Tolerances
Ball/Sphere
| Diameter | Standard | ±5% |
|---|---|---|
| Diameter | Precision | See Item |