Acetal Homopolymer
Product full identity:
Polyoxymethylene homopolymer / POM H
Acetal Homopolymer offers good sliding properties with a low coefficient of friction. Homopolymer generally has a higher stiffness, hardness, mechanical and creep resistance when compared to Acetal co-polymer.
Properties
- High strength and hardness
- Good creep resistance
- Wide temperature range (+105 to -50°C)
- Low moisture absorption
- Good sliding properties
Applications
- Bearings
- Gear wheels
- Wear guides
- Locking systems.
Forms
- Sheet
- Rod
Technical Properties:
All information is for guide purposes only. The data has been taken from standard test results provided by our manufacturers.
| Property | Unit | Test Method | Value |
|---|---|---|---|
| Specific gravity | g/cm³ | ISO 1183-1 | 1.43 |
| Water absorption till saturation 23°C | % | 0.80 | |
| Maximum service temp. Upper temp limit - short term | °C | 150 | |
| Maximum service temp. Upper temp limit - Long term | °C | 105 | |
| Lower temp limit | °C | -50 |
| Property | Unit | Test Method | Value |
|---|---|---|---|
| Tensile strength | MPa | ISO 527-1/-2 | 78 |
| Tensile strength at break | MPa | ISO 527-1/-2 | 78 |
| Unnotched Impact strength | kJ/m² | ISO 179-1/1eU | no break |
| Notch impact strength | kJ/m² | ISO 179-1/1eA | 10 |
| Ball indentation / Rockwell hardness | MPa | ISO 2039-1/2039-2 | 160 / M88 |
| Tensile modulus of elasticity | MPa | ISO 527-1/-2 | 3700 |
| Property | Unit | Test Method | Value |
|---|---|---|---|
| Volume resistivity | Ω x m | IEC 60093 | > 1014 |
| Surface resistivity | Ω | IEC 60093 | > 1013 |
| Dielectric strength | kV/mm | IEC 60243-1 | 20 |
| Dielectric constant at 1MHz | IEC 60250 | 3.80 | |
| Dielectric loss factor at 1 MHz | IEC 60250 | 0.008 | |
| Comparative tracking index (CTI) | IEC 60112 | 600 | |
| Dielectric constant at 1MHz | IEC 60250 | 3.80 | |
| Dielectric loss factor at 1 MHz | IEC 60250 | 0.008 | |
| Comparative tracking index (CTI) | IEC 60112 | 600 |
| Property | Unit | Test Method | Value |
|---|---|---|---|
| Coefficient of linear thermal expansion 23°C - 100°C | m/(m.K) | 110 x 10-6 | |
| Thermal conductivity at 23°C | W/mK | 0.31 |
| Property | Unit | Test Method | Value |
|---|---|---|---|
| Food compliance - FDA | FDA | no | |
| Food compliance - EU | EU 10/2011 | no | |
| Food compliance - FDA | FDA | no | |
| Food compliance - EU | EU 10/2011 | no |
| Property | Unit | Test Method | Value |
|---|---|---|---|
| Fire performance | UL 94 | HB | |
| Fire performance | UL 94 | HB |
| Property | Unit | Test Method | Value |
|---|