| About |
|---|
| A medium viscosity standard grade for general injection molding.&& |
| Product Description | |
|---|---|
| Supplier | Korea Engineering |
| Generic | Copolymer Polyformaldehyde |
| Material Status | Commercial: Active |
| Features | Excellent Processability,Good flexibility,Good liquidity,Fatigue resistance,Copolymer,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 | 1.41 | g/cm³ | ASTM D792 |
| Melt Flow Rate | 9.0 | g/10min | ASTM D1238 |
| Shrinkage rate | |||
| MD：3.0 mm | 2.0 | % | ASTM D955 |
| Water absorption rate | |||
| Equilibrium, 23 ℃, 60% RH | 0.22 | % | ASTM D570 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | |||
| 3.2mm | 64 | J/m | ASTM D256 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | ASTM D648 | ||
| 0.45 MPa, unannealed | 158 | ℃ | |
| 1.8 MPa, unannealed | 110 | ℃ | |
| Melting temperature | 165 | ℃ | |
| Linear coefficient of thermal expansion | |||
| MD：20~80℃ | 1.3E-4 | 1/℃ | ASTM D696 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Surface resistivity | 1.0E+16 | ohms | ASTM D257 |
| Volume resistivity | 1.0E+14 | ohms·cm | ASTM D257 |
| Dielectric strength | 19 | kV/mm | ASTM D149 |
| Dielectric constant | |||
| 1 MHz | 3.70 | ASTM D150 | |
| Dissipation factor | |||
| 1 MHz | 7.0E-3 | ASTM D150 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| 0.80 mm | HB | UL 94 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Rockwell hardness | |||
| M-level | 80 | ASTM D785 | |
| tensile strength | |||
| Yield, 23 ℃ | 61.0 | MPa | ASTM D638 |
| Tensile strain | |||
| Fracture, 23 ℃ | 60 | % | ASTM D638 |
| Bending modulus | |||
| 23℃ | 2600 | MPa | ASTM D790 |
| bending strength | |||
| 23℃ | 90.0 | MPa | ASTM D790 |
| shear strength | |||
| 2.00 mm | 55.0 | MPa | ASTM D732 |
| Notes |
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