Welcome to the Jinzhou City Success Quartz Glass Factory official website！cara@successquartz.com
欢迎访问锦州市成功石英玻璃厂官方网站！cara@successquartz.com
Welcome to the Jinzhou City Success Quartz Glass Factory official website! cara@successquartz.com
Quartz glass Chemical content and Physical Property
2019-10-29
Chemical content:
Unit:ppm
|
SiO2 |
Al |
Fe |
Ca |
Mg |
Ti |
Mn |
B |
K |
Na |
Li |
|
>99.9% |
<25 |
<1.5 |
<1.0 |
<1.5 |
<1.0 |
<0.5 |
<1.0 |
<2 |
<1.5 |
<0.8 |
Transmission >85%
Physical Property:
|
Character |
Value |
Noted |
|
Density |
2.2×103㎏/㎡ |
Thermal stability: Put the quartz material from 1100 °C to 20 ℃ three times, will not cracks. It will be not chaged color under 1100 degree for three hours.
|
|
Hardness |
570KHN100 |
|
|
Tensile strength |
4.8×107Pa(N/㎡) |
|
|
Compression strength |
﹥1.1×109 Pa |
|
|
Coefficient of thermal expansion （20℃-300℃） |
5.5×10-7㎝/㎝℃
|
|
|
Thermal conductivity (20℃) |
1.4W/m℃ |
|
|
Specific heat(20℃) |
660J/㎏℃ |
|
|
Softening point |
1730℃ |
|
|
Annealing point |
1250℃ |