Transparent Borosilicate Glass Tube
Transparent Borosilicate Glass Tube
Specifications
Borosilicate glass tube 3.3
Color: clear
Borosilicate COE3.3 glass tubing:
1. Diameter available: 3.5mm~300mm
2. Wall thickness: 0.8mm~12mm
3. Length: 1220mm~3000mm
4. Regular sizes: 9*2, 12*2, 25*4, 28*4, 32*3.2, 32*4, 38*4, 44*4, 51*4, 50*5.
5. The high borosilicate 3.3 glass tube is used forlab equipment, optical, medical, daily glassware, solar energy, test tube, etc.
6. We can supply special dimensions according to request.
Chemical Composition
SiO2: 81%
B2O3: 13%
Na2O+K2O: 4%
Al2O3: 2%
| Physical Performance | Numerical Value | Unit |
| Coefficient of Mean Linear Thermal Expansion(ISO 7991) | 3.3±0.1 | 10 -6 K -1 |
| Transformation Temperature | 525±15 | °C |
| Softening Point (ISO 7884-6) | 820±10 | °C |
| Working Point (ISO 7884-2, ISO 7884-5) | 1260±20 | °C |
| Upper Cooling Temperature (ISO 7884-7) | 560 | °C |
| Lower Cooling Temperature (ISO 7884-7) | 510 | °C |
| Density at 20°C | 2.23±0.02 | g/cm 3 |
| Thermal Conductivity (20°C--100°C) | 1.2 | w/m 2 K |
| Specific heat capacity at constant pressure | 0.8× 10 3 | J×/Kg@K |
| Modulus of elasticity | 64 × 10 3 | MPa |
| Tensile strength | 35-100 | MPa |
| Poisson constant | 0.2 | |
| Refractive Index | 0.92 |
Packaging:
According to the customer request
Shipping:
Delivery time:Within 15 days after receip of deposit
We will send free sample can represent our bulk cargo for our clients reference.
We have a professional team and the firstclass service, will provide you with all necessary information on your orders, lead time, stocks, deliveries and transportation.
Hebei Warkin Glass Co.Ltd is major in a professional and comprehensive company and is one of the leading manufactures and exporters in China with extensive experience.
Our products is the fire/high temprature resistance glass,glass ceramics, Borosilicate glass,quartz glass...Our product products has widely used in fireplace/stove,cooking utensils, building industry, papermaking industry and so on.
Q:Can i get a sample before bulk order ? how can i get it ?
A:Sample is free ,but freight collect.
You may tell us your express account No.such as DHL.
Also you could prepay the freight cost by Western union, we will send out sample asap once getting your payment.
Q:Can you do customers’ styles?
A:Yes ,just send us the drawing ,then we could open a new mould for you to produce it as your request
Q:Is this retail product?
A:sorry , it is wholesale product .
Q:Can we visit your factory ?
A:Certainly.welcome your visit.
Q: How to ensure the cargo quality?
A:We will supply bulk sample before shipping.They can represent the cargo quality.
Q: Why choose Hebei Warkin Glass Co.Ltd?
A:We are a manufacturer , we have produced the road safe products for years in Hebei, so the price is quite competitive in the market, and the quality is suprior.
Q: What’s the payment method?
A:T/T: Accept USD, EUR.
Western Union: Quickly to the account, Priority in delivery
Behalf Paying: Your Chinese friends or your Chinese agent can pay for in RMB
Q: How to contact us?
TEL:86-0311-68053070
FAX:86-0311-68053070
Website: www.hwkglass.com
sales01 at hwkglass.com
- Step 1Find your interested products by search keywords
- Step 2Contact the supplier by clicking ”Enquire” or “request meeting” button, otherwise, you also could consult our import consultant.
- Step 3After verifying your email, get response from suppliers or our trade manager will contact you as soon as possible
- Step 4Set up meeting with the Chinese supplier without language barrier