PP MOULDING-Samsung-Total HJ730L
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Product Description
SAMSUNG TOTAL HJ730L is a highly isotactic Homo PP(HIPP) with high crystalline properties compared to normal Homo PP. The product’s crystalline properties have enhanced its strength and heat resistance. HJ730L is highly useful for use in electrical/electronic appliances and high strength automobile parts which are exposed to lengthy periods of high temperatures
| Physical | Nominal Value (English) | Nominal Value (SI) | Test Method |
| Density | 0.910 g/cm³ | 0.910 g/cm³ | ASTM D1505 |
| Melt Mass-Flow Rate (MFR) (230°C/2.16 kg) | 5.0 g/10 min | 5.0 g/10 min | ASTM D1238 |
| Mechanical | Nominal Value (English) | Nominal Value (SI) | Test Method |
| Tensile Strength (Yield) | 6120 psi | 42.2 MPa | ASTM D638 |
| Tensile Elongation (Break) | 200 % | 200 % | ASTM D638 |
| Flexural Modulus | 299000 psi | 2060 MPa | ASTM D790 |
| Impact | Nominal Value (English) | Nominal Value (SI) | Test Method |
| Notched Izod Impact (73°F (23°C)) | 0.73 ft·lb/in | 39 J/m | ASTM D256 |
| Hardness | Nominal Value (English) | Nominal Value (SI) | Test Method |
| Rockwell Hardness (R-Scale) | 105 | 105 | ASTM D785 |
| Thermal | Nominal Value (English) | Nominal Value (SI) | Test Method |
| Deflection Temperature Under Load
66 psi (0.45 MPa), Unannealed |
279 °F |
137 °C |
ASTM D648 |
| Optical | Nominal Value (English) | Nominal Value (SI) | Test Method |
| Gloss | 90 | 90 | ASTM D2457 |
| Injection | Nominal Value (English) | Nominal Value (SI) | |
| Rear Temperature | 320 to 392 °F | 160 to 200 °C | |
| Middle Temperature | 392 to 464 °F | 200 to 240 °C | |
| Front Temperature | 428 to 500 °F | 220 to 260 °C | |
| Mold Temperature | 86.0 to 122 °F | 30.0 to 50.0 °C | |
| Injection Pressure | 14200 to 35600 psi | 98.1 to 245 MPa | |
| Holding Pressure | 11400 to 32700 psi | 78.5 to 226 MPa | |
Specification: PP MOULDING-Samsung-Total HJ730L
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