Due to the fragile nature of the material there may be some edge chipping.
| 订货号 | 包装规格 |
| Sizes |
| 775-427-57 | 25mm x 25mm |
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参数
| Purity[纯度] | 96.0% |
| Surface Finish[表面光洁度] | Lapped Surface |
| Thickness[厚度] | 0.1mm |
| Mechanical Properties(机械性能) |
| Hardness - Knoop ( kgf mm⁻² ) | 2100 |
| Hardness - Vickers ( kgf mm⁻² ) | 1500 - 1650 |
| Shear strength ( MPa ) | 330 |
| Tensile modulus ( GPa ) | 300.00 - 400.00 |
| Tensile strength ( MPa ) | 260.00 - 300.00 |
| Physical Properties(物理性质) |
| Apparent porosity ( % ) | 0.00 |
| Density ( g cm⁻³ ) | 3.900 |
| Chemical Resistance(耐化学性) |
| Acids - concentrated | Good |
| Acids - dilute | Good |
| Alkalis | Good |
| Halogens | Good |
| Metals | Good |
| Pultrusion(挤拉成型) |
| Compressive strength ( MPa ) | 2200 -2600 |
| Thermal Properties(热性能) |
| Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 8.000 @20-1000℃ |
| Melting point ( C ) | 2100.00 |
| Specific heat ( J K⁻¹ kg⁻¹ ) | 850.0 - 900.0 @25℃ |
| Thermal conductivity ( W m⁻¹ K⁻¹ ) | 26.00 - 35.00 @20℃ |
| Upper continuous use temperature ( C ) | 1700 |
| Electrical Properties(电气特性) |
| Dielectric constant | 9.0 - 10.1 |
| Dielectric strength ( kV mm⁻¹ ) | 10.0 - 35.0 |
| Volume resistivity ( Ohmcm ) | >10¹⁴@25℃ |
其他参数
公差
| 长度 | <100mm | ±1mm |
|---|
| ≥100mm | +2% / -1% |
| 直径 | <100mm | ±1mm |
|---|
| ≥100mm | +2% / -1% |
| 厚度 | | ±10% |
|---|
| 陶瓷 | ±20% |
| 复合材料 | ±20% |
| 聚合物 | ±20% |
| 长度 1 | <100mm | ±1mm |
|---|
| ≥100mm | +2% / -1% |
| 长度 2 | <100mm | ±1mm |
|---|
| ≥100mm | +2% / -1% |
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