聚甲醛均聚物,片, Acetal, Homopolymer POMH, 5mm厚
产品介绍
| 订货号 | 包装规格 | | Sizes | | 749-982-43 | 120 mm x 120 mm | | 680-234-58 | 150 mm x 150 mm | | 671-636-98 | 240 mm x 240 mm | | 029-323-65 | 300 mm x 300 mm | | 264-367-75 | 500 mm x 500 mm |
产品参数 | Thickness[厚度] | 5mm | | Mechanical Properties(机械性能) | | Coefficient of friction | 0.20 - 0.35 | | Elongation at break ( % ) | 40.0 -75.0 | | Hardness - Rockwell | M94 | | Izod impact strength ( J m⁻¹ ) | 75.0 - - 130.0 | | Poisson's ratio | 0.350 | | Tensile modulus ( GPa ) | 2.90 - 3.10 | | Tensile strength ( MPa ) | 70.00 | | Physical Properties(物理性质) | | Density ( g cm⁻³ ) | 1.420 | | Flammability | HB | | Limiting oxygen index ( % ) | 15 | | Radiation resistance | Poor | | Resistance to Ultra-violet | Poor | | Water absorption - equilibrium ( % ) | 0.60 - 0.90 | | Water absorption - over 24 hours ( % ) | 0.250 | | Thermal Properties(热性能) | | Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 122.000 | | Heat-deflection temperature - 0.45MPa ( C ) | 170 | | Heat-deflection temperature - 1.8MPa ( C ) | 135.0 | | Specific heat ( J K⁻¹ kg⁻¹ ) | 1500.0 | | Thermal conductivity ( W m⁻¹ K⁻¹ ) | 0.22 - 0.24 @23℃ | | Upper working temperature ( C ) | 80 - 120 | | Electrical Properties(电气特性) | | Dielectric constant @1MHz | 4 | | Dielectric strength ( kV mm⁻¹ ) | 20.0 | | Dissipation factor @ 1MHz | 0.0050 | | Surface resistivity ( Ohm/sq ) | 10¹⁵ | | Volume resistivity ( Ohmcm ) | 10¹⁵ | | Chemical Resistance(耐化学性) | | Acids - concentrated | Poor | | Acids - dilute | Poor-Fair | | Alcohols | Good-Fair | | Alkalis | Poor | | Aromatic hydrocarbons | Good | | Greases and Oils | Good | | Halogenated Hydrocarbons | Good-Poor | | Halogens | Poor | | Ketones | Good-Fair |
其他参数 公差 | 长度 | <100mm | ±1mm |
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| ≥100mm | +2% / -1% | | 直径 | <100mm | ±1mm |
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| ≥100mm | +2% / -1% | | 厚度 | | ±10% |
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| 陶瓷 | ±20% | | 复合材料 | ±20% | | 聚合物 | ±20% | | 长度 1 | <100mm | ±1mm |
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| ≥100mm | +2% / -1% | | 长度 2 | <100mm | ±1mm |
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| ≥100mm | +2% / -1% |
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