| About |
|---|
| A low viscosity grade for general injection molding. It was modified with talcum, and so suitable for parts requiring more reducing deformation than that of standard grade under same stress. Exhibits excellent dimensional accuracy.&& |
| Product Description | |
|---|---|
| Supplier | Korea Engineering |
| Generic | Copolymer Polyformaldehyde |
| Material Status | Commercial: Active |
| Features | Low warping,Excellent Processability,Good flexibility,Good Dimensional Stability,Low Viscosity,Fatigue resistance,Good wear resistance,Solvent resistance,Heat Stabilized,HB |
| Availabilitys | North America,Asia Pacific,Europe |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | |||
| — | 1.48 | g/cm³ | ASTM D792 |
| — | 1.56 | g/cm³ | ISO 1183 |
| Melt Flow Rate | |||
| 190℃，2.16kg | 21 | g/10min | ASTM D1238 |
| 21 | g/10min | ISO 1133 | |
| Shrinkage rate | |||
| MD：2.0 mm | 1.7 | % | ASTM D955 |
| 3.0 mm | 1.7 | % | ISO 294-4 |
| Water absorption rate | |||
| Equilibrium, 23 ℃, 60% RH | 0.20 | % | ASTM D570 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | |||
| Yield, 23 ℃ | 62.0 | MPa | ASTM D638 |
| Yield, 23 ℃ | 67.0 | MPa | ISO 527-2 |
| Tensile strain | |||
| Fracture, 23 ℃ | 8.0 | % | ASTM D638 |
| Fracture, 23 ℃ | 5.0 | % | ISO 527-2 |
| Bending modulus | |||
| 23℃ | 4080 | MPa | ASTM D790 |
| 23℃ | 4200 | MPa | ISO 178 |
| bending strength | |||
| 23℃ | 104 | MPa | ASTM D790 |
| 23℃ | 105 | MPa | ISO 178 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Charpy Notched Impact Strength | 3.4 | kJ/m² | ISO 179-1eA |
| Impact strength of cantilever beam notch | |||
| 3.2mm | 41 | J/m | ASTM D256 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 1.8 MPa, unannealed | 144 | ℃ | ASTM D648 |
| 1.8 MPa, unannealed | 125 | ℃ | ISO 75-2/A |
| Melting temperature | 165 | ℃ | |
| Linear coefficient of thermal expansion | |||
| MD：20~80℃ | 8.0E-5 | 1/℃ | ASTM D696 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Surface resistivity | 1.0E+16 | ohms | ASTM D257，IEC 60093 |
| Volume resistivity | 1.0E+14 | ohms·cm | ASTM D257，IEC 60093 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| 0.80 mm | HB | UL 94 |
| Notes |
|---|
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