TYPICAL DATA OF TRAMID® 923G25 GRADE
| PROPERTY | UNIT | ASTM METHOD | TYPICAL DATA |
|---|---|---|---|
| Physical | |||
| Specific Gravity | - | D792 | 1.33 |
| Water Absorption (24 hours at 23℃) | % | D570 | 0.9 |
| MECHANICAL | |||
| Tensile Strength at yield | kgf/㎠ | D638 | 1,600 |
| Tensile Elongation at break | % | D638 | 3 |
| Flexural Strength at yield | kgf/㎠ | D790 | 2,100 |
| Flexural Modulus | kgf/㎠ | D790 | 66,000 |
| Izod Impact Strength, notched, 23℃ (1/8”) | kgf∙㎝/㎝ | D256 | 7 |
| THERMAL | |||
| HDT, 18.6 ㎏f/㎠ | ℃ | D648 | 246 |
| ELECTRICAL | |||
| Dielectric Strength | kV/㎜ | D149 | 17 |
| OTHERS | |||
| Mold Shrinkage | % | 0.6~0.9 | |
※The figures listed in this table are typical values obtained under the standard test methods and may not be applicable for products that are under different application condition.
PROCESSING GUIDE FOR TRAMID® 923G25 GRADE
General processing conditions for TRAMID® 923G25 are shown below.
Drying prior to processing is essential to ensure desired appearance and property performance.
| SPECIFICATION | UNIT | CONDITIONS |
|---|---|---|
| Drying Temperature | ℃ | 120 |
| Drying Time | hr | 5~7 |
| Moisture Content, Max | % | 0.2 |
| Melt Temperature | ℃ | 275~290 |
| Nozzle Temperature | ℃ | 275~290 |
| Front Temperature | ℃ | 275~290 |
| Middle Temperature | ℃ | 275~290 |
| Rear Temperature | ℃ | 275~290 |
| Mold Temperature | ℃ | 0~95 |
| Back Pressure | MPa | 0.1~0.5 |
| Screw Speed | rpm | 30~70 |
| Injection Pressure | MPa | 40~100 |
| Injection Speed | % | 30~70 |
| Hold Pressure | MPa | 30~80 |
| Injection Cushion | mm | 2.5~3.5 |