86-0518-87219008
South Of Peace East Rd., Niushan Town, Donghai County, Lianyungang, Jiangsu, China (Mainland)
Quartz glass is a single component of silica glass. This glass hardness can reach seven Mohs grade, high temperature, low expansion coefficient, thermal shock resistance, chemical stability and good electrical insulation performance, and can through ultraviolet and infrared, have good acid resistance to acid.
Density g/cm3 | 2.2 |
Comressive strength N/mm2 | 1100 |
Bending strength N/mm2 | 67 |
Tension strength N/mm2 | 48 |
Micor hardness N/mm2 | 8600-9800 |
Mahs hardness | 5.5-6.5 |
Thermal properties
Coefficient of thermal expansion | 5.5×10-7/℃ |
Thermal conductance | 1.4 |
Specific heat | 670 |
Softening point | 1683℃ |
Annealing point | 1215℃ |
Deformation temperature(long time heat retaining) | 1120℃ |
standard export packing
1.wooden case with foam;
2.plastic air cushion film;
3.paper carton;
4.customized
we can do neat cutting,burning mouth,bending,sealing,grinding.
Hydroxyl content can be controled less than 20ppm/15ppm/10ppm/5ppm/2ppm jsut according to clients' requirements.
Reply: within one working day
Orders: according to customer requirements, and strictly abide by the agreed date of delivery
After sales service: we promise that if the products have quality problems in strict accordance with the agreement between the two sides
Donghai chongrui technology Co.,Ltd main products are various specifications of quartz glass tube and various non-standard instrument.
we have the fixed asset for more than 80 million yuan.The factory covers 30,000 square meters. There are 300-500 workers here.the geography position of the factory is superior with convenient transportation. With the advanced equipment,abundant technical,complete measurement detection means and quality control system so that it can supply the high standard high quality products!
The main products we can produce are as follows:quartz tube,quartz processing(quartz sealing tube,quartz burning mouth tube,quartz beaker,quartz condenser,quartz crucible,quartz plate,quartz rod,quartz sheath,crystal powder ect)
A:Seaworthy strong plywood crates with paper interleave . The crates will be very strong and every loading worker has 5 years packed, loading and fixation crates with container experience. And we send the loading pictures for you after we loading .
2.Q: What is your payment term ?
A:Our payment term is T/T 30% in advance ,70% after get the copy of B/L .
If your glass quantity is less, we want to TT 100% . You can payment By L/C, T/T, Paypal, Western Union and company bank account .
3.Q:How can I get some samples?
A:We are honored to offer you samples.
4.Q: How long time we can get the samples ?
A: We send the samples in 3 - 5 days after you confirm .
5.Q:How does your factory do regarding quality control ?
A:Quality first is our motto ,Workers always attach great importance to quality controlling from the very beginning to the very end .
