| About |
|---|
| Chemical abbreviation according to ISO 1043-1: POM Molding compound ISO 9988- POM-K, M-GNR, 03-002, K5 POM copolymer Injection molding type, with special chalk modified; good wear properties; good chemical resistance to solvents, fuel and strong alkalis as well as good hydrolysis resistance; high resistance to thermal and oxidative degradation. UL-registration in natural and a thickness more than 1.57 mm as UL 94 HB, temperature index UL 746 B electrical 105 °C, mechanical 90 °C (tensile impact) and 80 °C (tensile). Burning rate ISO 3795 and FMVSS 302 < 100 mm/min for a thickness more than 1 mm. Ranges of applications: for unlubricated or once-only-lubricant sliding Parts. FMVSS = Federal Motor Vehicle Safety Standard (USA) UL = Underwriters Laboratories (USA)&& |
| Product Description | |
|---|---|
| Supplier | Celanese |
| Generic | Copolymer Polyformaldehyde |
| Material Status | Commercial: Active |
| Features | Good Rigidity,Weather resistance is good,High impact resistance,High Heat Resistance,Good tear strength,HB |
| Availabilitys | North America,Asia Pacific,Europe |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| MECHANICAL | Nominal value | Unit | Test method |
| Tensile modulus | 3000 | MPa | ISO 527-2/1A/1 |
| tensile strength | |||
| yield | 60.0 | MPa | ISO 527-2/1A/50 |
| Tensile strain | |||
| yield | 8.0 | % | ISO 527-2/1A/50 |
| Nominal tensile fracture strain | 22 | % | ISO 527-2/1A/50 |
| Tensile creep modulus | ISO 899-1 | ||
| 1 hr | 2500 | MPa | ISO 899-1 |
| 1000 hr | 1400 | MPa | ISO 899-1 |
| Bending modulus | |||
| 23℃ | 2900 | MPa | ISO 178 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Charpy Notched Impact Strength | ISO 179/1eA | ||
| -30℃ | 5.0 | kJ/m² | ISO 179/1eA |
| 23℃ | 5.0 | kJ/m² | ISO 179/1eA |
| Charpy Unnotch Impact strength | ISO 179/1eU | ||
| -30℃ | 100 | kJ/m² | ISO 179/1eU |
| 23℃ | 100 | kJ/m² | ISO 179/1eU |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 1.8 MPa, unannealed | 100 | ℃ | ISO 75-2/A |
| Melting temperature | 166 | ℃ | ISO 11357-3 |
| Linear coefficient of thermal expansion | |||
| MD | 1.1E-4 | 1/℃ | ISO 11359-2 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Surface resistivity | 1.0E+14 | ohms | IEC 60093 |
| Volume resistivity | 1.0E+14 | ohms·cm | IEC 60093 |
| Dielectric strength | 35 | kV/mm | IEC 60243-1 |
| Relative permittivity | IEC 60250 | ||
| 100 Hz | 4.20 | IEC 60250 | |
| 1 MHz | 4.20 | IEC 60250 | |
| Dissipation factor | IEC 60250 | ||
| 100 Hz | 2.5E-3 | IEC 60250 | |
| 1 MHz | 6.0E-3 | IEC 60250 | |
| Compared to the leakage tracing index | 600 | V | IEC 60112 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | UL 94 | ||
| 1.60 mm | HB | UL 94 | |
| 3.20 mm | HB | UL 94 |
| PHYSICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Density | 1.44 | g/cm³ | ISO 1183 |
| Melt Volume Rate | |||
| 190℃，2.16 kg | 7.50 | cm³/10min | ISO 1133 |
| Shrinkage rate | ISO 294-4 | ||
| TD | 1.8 | % | ISO 294-4 |
| MD | 2.0 | % | ISO 294-4 |
| Water absorption rate | |||
| Saturation, 23 ℃ | 0.65 | % | ISO 62 |
| Density of Melt | 1.230 | g/cm³ | Internal Method |
| Specific Heat Capacity of Melt | 2060 | J/kg/℃ | Internal Method |
| Thermal Conductivity of Melt | 0.20 | W/m/K | Internal Method |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Drying temperature | 100 to 120 | °C | |
| Drying time | 3.0 to 4.0 | hr | |
| Recommended maximum moisture content | 0.15 | % | |
| Hopper temperature | 20 to 30 | °C | |
| Barrel rear temperature | 170 to 180 | °C | |
| Barrel middle temperature | 180 to 190 | °C | |
| Barrel front temperature | 190 to 200 | °C | |
| Nozzle temperature | 190 to 210 | °C | |
| Processing (melt) temperature | 190 to 210 | °C | |
| Mold temperature | 80 to 120 | °C | |
| Injection pressure | 60.0 to 120 | MPa | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 30s |
| 3. 10°C/min |
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