品牌: Goodfellow纯度含量: 99.7%产地: 英国
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| 品牌: | Goodfellow | | 纯度含量: | 99.7% | | 产地: | 英国 |
产品介绍 | 订货号 | 包装规格 | | Sizes | | 776-927-21 | 25mm x 25mm | | 905-145-59 | 50mm x 50mm | | 238-763-45 | 100mm x 100mm |
产品参数 | Purity[纯度] | 99.7% | | Thickness[厚度] | 2.5mm | | 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 |
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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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