| About |
|---|
| Kingfa JH840 is a Polycarbonate (PC) material. It is available in Asia Pacific or North America for injection molding. Important attributes of Kingfa JH840 are: Flame Rated RoHS Compliant Flame Retardant Good Processability Typical applications include: Electrical/Electronic Applications Engineering/Industrial Parts Housings&& |
| Product Description | |
|---|---|
| Supplier | Kingfa |
| Generic | Polycarbonate |
| Material Status | Commercial: Active |
| Features | Excellent Processability,Good liquidity,Flame Characteristics |
| Availabilitys | North America,Asia Pacific |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.21 | g/cm³ | ASTM D792 |
| Melt Flow Rate | |||
| 300℃，1.20kg | 12 | g/10min | ASTM D1238 |
| Shrinkage rate | |||
| MD：23℃ | 0.50 to 0.70 | % | ASTM D955 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | 62.0 | MPa | ASTM D638 |
| Tensile strain | |||
| fracture | 60 | % | ASTM D638 |
| Bending modulus | 2300 | MPa | ASTM D790 |
| bending strength | 90.0 | MPa | ASTM D790 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | |||
| 23℃，3.2mm | 600 | J/m | ASTM D256 |
| Notched impact strength of cantilever beam | |||
| 23℃，3.2 mm | 无断裂 | ASTM D256 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 0.45 MPa, unannealed, 6.4 mm | 131 | ℃ | |
| 1.8 MPa, unannealed, 6.4 mm | 120 | ℃ | |
| Ball pressure test | |||
| 125℃，2.0 mm | 通过 | IEC 60695-10-2 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Surface resistivity | 1.0E+15 | ohms | ASTM D257 |
| Volume resistivity | 1.0E+16 | ohms·cm | ASTM D257 |
| Dielectric strength | |||
| 1.6 mm | 28 | kV/mm | ASTM D149 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | |||
| — | V-0 | ||
| 0.75 mm | V-0 |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Drying temperature | 120 | °C | |
| Drying time | 4.0 to 6.0 | hr | |
| Barrel rear temperature | 240 to 260 | °C | |
| Barrel middle temperature | 250 to 270 | °C | |
| Barrel front temperature | 260 to 280 | °C | |
| Processing (melt) temperature | 240 to 280 | °C | |
| Mold temperature | 60 to 120 | °C | |
| Injection speed | Slow-Fast | ||
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 23°C |
| 3. 2.0 in/min |
| 4. 0.079 in/min |
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