石英玻璃管
价格:电议
地区:江苏省 连云港市
电 话:86-518-82972868
手 机:86-13851395353
传 真:86-518-87350989
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尺寸公差Dimensional Tolerance | |||||
外径范围 Range of OD | 外径 OD | 壁厚 WT | 偏壁度 Siding | 椭圆度 Out of Round | 弯曲度 |
Bow/1220mm | |||||
≤6mm | ±2.0% | ±10% | 12% | 2.00% | 2.5mm |
6.00-15.00mm | ±1.25% | ±8% | 10% | 1.50% | 2.5mm |
15.00-20.00mm | ±1.25% | ±10% | 15% | 1.50% | 2.5mm |
20.00-25.00mm | ±1.25% | ±10% | 15% | 1.50% | 2.5mm |
25.00-30.00mm | ±1.35% | ±12% | 15% | 1.50% | 2.5mm |
30.00-80.00mm | ±1.5% | ±14% | 15% | 2.00% | 2.5mm |
化学成份 Chemical composition 单位:unit:ppm | |||||||||||
铝 Al | 铁 Fe | 钾 K | 钠 Na | 锂 Li | 钙 Ca | 镁 Mg | 铜 Cu | 锰 Mn | 铅 Pb | 硼 B | 钛 Ti |
20 | 1 | 3.5 | 3.5 | 1 | 2 | 0.5 | 0.3 | 0.5 | <0.01 | <0.2 | 2 |
物理性能:Physical Properties | |
密度 Density 20℃kg*m-3(×103) | 2.2 |
热膨胀系数 Coefficient of expansion 25-300℃℃-1(×10-6) | 0.56 |
软化点 Softening point(℃) | 1710 |
退火点 Annealing point(℃) | 1230 |
变形点 Strain point(℃) | 1140 |
杨氏模量 Youngs modulus(Pa) | 7.3×105 |