類別：聚合物；熱塑性；聚甲醛（POM）；乙縮醛共聚物，無筋
材料說明：一個M90基材料適合在沖擊強度和柔韌性提供適度的改進。
物性表：| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 1.39 g/cc | 0.0502 lb/in³ | ASTM D792 |
| Water Absorption | 0.21 % | 0.21 % | ASTM D570 |
| Moisture Absorption at Equilibrium | 0.80 % | 0.80 % | ASTM D570 |
| Linear Mold Shrinkage | 0.021 cm/cm | 0.021 in/in | |
| Linear Mold Shrinkage, Transverse | 0.017 cm/cm | 0.017 in/in | |
| Mechanical Properties | Metric | English | Comments |
| Hardness, Rockwell R | 114 | 114 | ASTM D785 |
| Tensile Strength, Yield | 50.0 MPa | 7250 psi | ASTM D638 |
| Elongation at Break | 100 % | 100 % | ASTM D638 |
| Flexural Strength | 66.0 MPa | 9570 psi | ASTM D790 |
| Flexural Modulus | 1.90 GPa | 276 ksi | ASTM D790 |
| Compressive Strength | 71.0 MPa | 10300 psi | 10% Deflection; ASTM D695 |
| Shear Strength | 47.0 MPa | 6820 psi | ASTM D732 |
| Izod Impact, Notched | 1.00 J/cm | 1.87 ft-lb/in | ASTM D256 |
| 0.600 J/cm @Temperature -29.0 °C |
1.12 ft-lb/in @Temperature -20.2 °F |
ASTM D256 | |
| Thermal Properties | Metric | English | Comments |
| Deflection Temperature at 0.46 MPa (66 psi) | 150 °C | 302 °F | ASTM D648 |
| Deflection Temperature at 1.8 MPa (264 psi) | 101 °C | 214 °F | ASTM D648 |
| Flammability, UL94 | HB | HB | |
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