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Product Name / Manufacturer / Model
Grade
Reference Price
| thermal performance | Test Condition | Test Method | ZHANGZHOU CHANGCHUN/4820 NCB |
|---|---|---|---|
| Hot deformation temperature | 18.6kg/cm | ASTM D648 | 205（220） °C |
| Linear coefficient of thermal expansion | ASTM D696 | 4 | |
| Melting temperature | DSC | 225 °C | |
| Flame resistance | UL 94 | V-0 | |
| Physical properties | Test Condition | Test Method | ZHANGZHOU CHANGCHUN/4820 NCB |
| Fiberglass content | CCP | 20 % | |
| Water absorption rate | 24h | ASTM D570 | 0.03 % |
| Electrical performance | Test Condition | Test Method | ZHANGZHOU CHANGCHUN/4820 NCB |
| Volume resistivity | ASTM D257 | ＞10 Ω.cm | |
| Dielectric strength | 2mm | ASTM D149 | ＞20 KV/mm |
| Dielectric constant | ASTM D150 | 4.5 60Hz | |
| Induced positive connection | ASTM D150 | 0.001 60Hz | |
| mechanical properties | Test Condition | Test Method | ZHANGZHOU CHANGCHUN/4820 NCB |
| Bending modulus | ASTM D790 | ≥50000 kg/cm | |
| Elongation at Break | ASTM D638 | 2.5-4.5 % | |
| Rockwell hardness | ASTM D785 | 93 M-scale | |
| tensile strength | ASTM D638 | 900-1200 kg/cm | |
| Impact strength of cantilever beam gap | ASTM D256 | 5-8 kg.cm/cm | |
| bending strength | ASTM D790 | 1500-2000 kg/cm |