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silica glass rod/pyrex glass rod
Specification
1.Diameter : 3mm to 42 mm
2.Length : below 3000mm,Normal:1200/1500mm
3.No bubbles and scratches
4.Color: Clear or colored
Product Category
1.Good thermal stability
2.Good corrosion resistant
3.Good light transmittance fuction
4.Good electric insulation
Chemical composition(ppm)
1.SiO2: 80±0.5%
2.B2O2: 13±0.2%
3.Al2O3: 2.4±0.2%
4.Na2O (+K2O): 4.3±0.2%
Chemical Property
1.Hydrolytic resistance at98° CISO719-HGB 1
2.Hydrolytic resistance at121° CISO720-HGA 1
3.Acid resistance ClassI SO1776-First Class
Physics Performance
| No. | Physics Performance |
Numerical Value |
Unit |
| 1 | Medium coefficient of linear expansion α20/300 acc.To DIN 52328 | 3.3 ± 0.1 |
10-6 K-1 |
| 2 | Transformation Temperature |
525 ± 15 |
degree Celsius |
| 3 | Upper annealing temperature |
560 ± 10 |
degree Celsius |
| 4 | Softening point |
820 ± 10 |
degree Celsius |
| 5 | Working temperature |
1260 ± 20 |
degree Celsius |
| 6 | Maximum short-time working temperature |
500 | degree Celsius |
| 7 | 20 degree Celsius Density ρ |
2.23 ± 0.02 |
g/cm3 |
| 8 | Modulus of elasticity E |
64 | 10 |
| 9 | Poisson’s ratioμ |
0.20 |
1 |
| 10 | Thermal conductivityλw(20 degree Celsius -100 degree Celsius ) |
1.2 |
W/m2K |
| 11 | Temperature for the specific electrical resistance of 108Ω·cm(DIN52326)tk 100 |
250 | degree Celsius |
| 12 | Stress-optical constant(DIN52314)K | 4.0 | 10-6mm2/N |
Qingdao Winton Glass
1. Providing technical consultation.
2. Samples and freight are free.
3. Special packaging according to request.
4. Providing related qualification documents.
5. Accepting customer's audit on site.
6. Providing shuttle bus service when visiting our factories.
7. Solving the quality matter on production line, providing technical inspection.
8. Solving customer's complaints in time and making advancement.
Qingdao Winton Glass
Qingdao Winton Glass
Customers' Satisfaction Is Very Important to Us
Q1.How fast can I get the quotation?
A:We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price, please call us or tell us in your email so that we will regard your inquiry priority.
Q2.How can I get a sample to check your quality?
A:After price confirmation, you can require for samples to check our quality. If you need the samples, and our inventory stocks, some products can supply free samples, but the freight is on your site.
Q3.Can you do the desigh for us?
A:Yes. We have a professional team having rich experience in drawing design and manufacturing. Just tell us your ideal and we will help to carry out your ideas.
Q4.What about the lead time for mass production?
A:Honestly , it depends on the order quantity and the season you place the order. The lead time of 500pcs is about 8 working days.
Q5.What is your terms of delivery?
A:We accept EXW FOB CIF, etc. You can choose the one which is the most convenient or cost effective for you.
Send Inquiry to This Supplier
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