Borosilicate glass 3.3 is one of transparent colorless glass, through wavelength is between 300 nm to 2500 nm, transmissivity is more than 90%. Coefficient of thermal expansion is 3.3. It can acid proof and alkali , the high temperature resistant is about 450°C. If course handling , the high temperature resistant can reach 550°C or so. Apply to lighting fixture , chemical industry , electron, high temperature equipment and so on.
working temperature of 500°C so are excellent for use in high powered light source applications or
an excellent choice for cold and hot mirror substrates.
|Bulk modulus:||93×103 M pa|
|Modulus of rigidity:||3.1×1010Pa|
|Compressive strength:||1200kg/ cm2|
|Thermal expansion coefficient:||(0-300ºC) (3.3±0.1)x10-6K-1|
|Coefficient of thermal conductivity:||1.2W×(m×k) -1|
|Specific heat capacity:||(20-100ºC) 00.82kJx(kgxk)|
|Optical performance:|| |
|1. Light transmittance:||92%|
|2. The refractive index:||Nd: 1.47384 |
|3. The wavelength:||435.8nm=1.481, 479.9nm=1.4772 , 546.1nm=1.4732|
|Softening point:||810±10 ºC|
|The resistivity1gρ||250ºC 8.0Ω×cm|
|Dielectric strength||5 ×107V/M|
|Dielectric loss factor||tanσ(MC20ºC)≤38 ×10-4|
|Resistance to cold and hot shock||280ºC |
|Continuous working temperature||≤550ºC|
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The normal size we have in stock is as follow:
in one carton
We can make products according to the requirements of our customers.
for more question, please email US
Accept the OEM process.
could customize based on your requirement, like packing, print logo and so on.
we are speialized in the packing service for fragile, so far no broken.
HIGHBORN is one of the leading high quality quartz glass and precise ceramics manufacturer and supplier in China.
HIGHBORN has always been a defining force in the sale and fabrication of quartz glass within the semi-conductor, chemical, solar Energy and precise ceramics within semi-conductor , solar energy, textile, electronic, and laser industries.
Not only have we mastered the fabrication technology, our strength has always been based around listening to and understanding our customer's requirements and expectations.
Continuous improvement in all areas of our business is key to our grouth. What is equally important to us is maintaining in business, our inherent family values of trust, faimess and respect to our employees, suppliers and customers.
1.Q:whether could supply the sample for test?
A:could supply the sample for free if have the enough stoccks, also could customize based on your requirement if you are glad to paid the sample fee.
2.Q:how to place the order?
A:you could email for the production,or chart on line and so on
3.Q:how can i pay for you?
A:T/T,L/C,Wester Union,Aliexpress and so on.
4.Q:how about the delivery way:
A:by air, by sea, by express or picked by yourself.