| About |
|---|
| High Rigidity Application Casings of Pump and Pivot Bearings&& |
| Product Description | |
|---|---|
| Supplier | LG Chemical |
| Generic | Copolymer Polyformaldehyde |
| Material Status | Commercial: Active |
| Features | HB |
| Availabilitys | Asia Pacific,North America,Europe |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.59 | g/cm³ | ASTM D792 |
| Shrinkage rate | |||
| MD | 0.40 – 0.90 | % | ASTM D955 |
| Melt index | 10 | g/10min | ASTM D1238 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | |||
| 23℃，6.4mm | 90 | J/m | ASTM D256 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 1.8 MPa, annealed, 6.35 mm | 160 | ℃ | ASTM D648 |
| 0.45 MPa, annealed, 6.35 mm | 165 | ℃ | ASTM D648 |
| Linear coefficient of thermal expansion | |||
| MD：20~80℃ | 4.0E-5 | 1/℃ | ASTM D696 |
| Relative temperature index | |||
| Electrical performance, 0.75 mm | 50.0 | ℃ | UL 746 |
| Strength mechanical performance, 0.75 mm | 50.0 | ℃ | UL 746 |
| Impact mechanical performance, 0.75 mm | 50.0 | ℃ | UL 746 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Surface resistivity | 1.0E+14 | ohms | ASTM D257 |
| Volume resistivity | 1.0E+16 | ohms·cm | ASTM D257 |
| Dielectric strength | 23 | kV/mm | ASTM D149 |
| Arc resistance | 125 | sec | ASTM D495 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | |||
| 0.75 mm | HB | UL 94 | |
| 1.5 mm | HB | UL 94 | |
| 3.0 mm | HB | UL 94 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | |||
| Yield, 3.2mm, 10 mm/min | 130 | MPa | ASTM D638 |
| Tensile strain | |||
| Fracture, 3.2mm, 10 mm/min | 3.0 | % | ASTM D638 |
| Bending modulus | |||
| 6.4mm，2.8 mm/min | 8000 | MPa | ASTM D790 |
| bending strength | |||
| Yield, 6.4mm, 2.8 mm/min | 200 | MPa | ASTM D790 |
| Rockwell hardness | 85 | R Scale | ASTM D785 |
| Process Conditions | |||
|---|---|---|---|
| Injection | Nominal value | Unit | Test method |
| drying temperature | 90 – 110 | °C | |
| Drying time | 2.0 – 3.0 | hr | |
| Temperature at the rear of the barrel | 180 – 200 | °C | |
| Temperature in the middle of the barrel | 190 – 210 | °C | |
| Front temperature of material barrel | 200 – 220 | °C | |
| Nozzle temperature | 200 – 220 | °C | |
| Mold temperature | 80 – 110 | °C | |
| Back pressure | 0 – 41 | bar | |
| Screw speed | 40 – 75 | mm/s | |
| Maximum moisture content | 0.1 | % | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 2.0 in/min |
| 3. 0.20 in/min |
| 4. 0.051 in/min |
| 【 Disclaimer 】 Guangzhou Soliao Information Technology Co., Ltd. reserves all rights. The information in this data table was obtained from the manufacturer of the material on soliao.com. Soliao.com makes every effort to ensure the accuracy of this data. However, the search company does not assume any responsibility for the uncertainty and consequences caused to users by these data values and suggestions, and strongly recommends verifying the data values with the material supplier before the final selection of materials. |