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| mechanical properties | Test Condition | Test Method | TOSOH JAPAN/GM-70 |
|---|---|---|---|
| Rockwell hardness | ASTM D-785 | 122 Rscal | |
| Impact strength of cantilever beam gap | Notched | ASTM D-256 | 59(6) J/m(kg.cm/cm) |
| Unnotched | ASTM D-256 | 137(14) J/m(kg.cm/cm) | |
| Tensile modulus | ASTM D-790 | 21(2.1) | |
| elongation | ASTM D-638 | 0.4 % | |
| bending strength | ASTM D-790 | 206(2100) MPa(Kg/cm2) | |
| tensile strength | ASTM D-638 | 108(1100) MPa(Kg/cm2) | |
| Electrical performance | Test Condition | Test Method | TOSOH JAPAN/GM-70 |
| Dielectric strength | ASTM D-149 | 12 KV/mm | |
| Dissipation factor | 1MHz | ASTM D-150 | 0.0015 |
| Volume resistivity | ASTM D-257 | 1×1016 Ω.cm | |
| Dielectric constant | 1MHz | ASTM D-150 | 5.4 |
| machinability | Test Condition | Test Method | TOSOH JAPAN/GM-70 |
| Shrinkage rate | 机械方向 | ASTM D-955 | 0.3 % |
| Across Flow | ASTM D-955 | 0.6 % | |
| thermal performance | Test Condition | Test Method | TOSOH JAPAN/GM-70 |
| Hot deformation temperature | 18.6kg/cm2 | ASTM D-648 | ＞260 °C |
| Linear coefficient of thermal expansion | 0.51(0.44) W/M.K(kcal/m.hr.℃) | ||
| Tosoh Method | 2.6 |