Borosilicate Glass Windows for Fireplace

borosilcate glass windowsProduct description:
Borosilicate glass is one of transparent colorless glasses, the wavelength is between 350nm to 2500nm, and the transimitance is more than 90%.
Its alkalifast, and the high temperature is up to 400°C,If course handling, the high temperature resiatant can reach 550°C.
1. Raw material: Borosilicate glass, Pyrex, Optical glass.
2. Processing: by Molding, Grinding, Polishing.
3. Surface quality: optical surface quality and well controlled tolerance
4. Inside quality: clear and transparent, no mold marks, no inside bubble and dirts.
5. Great heat resistance performance,stable chemical property.
6. Working field :widely used in high-temperature observation windows, lighting (high-power lighting panel), appliances, laboratory containers, solar, lighting and other fields.
Haisheng Optical produces of high borosilicate glass, with a good appearance, high temperature, resistance strong pressure, acid and alkali, high transparency, good quality, After cutting, grinding, polishing, milling,Tempered and so on process to complete.Specification of our quartz glass as following:Range of diameterDia.0.7mm-Dia.400mmRange of curve radiusR1.5-R∞ etc.Tolerance of diameter+/-0.1, +/-0.01, +/-0.005 etc.Surface accuracyλ , 1/2λ , 1/4λ , 1/10λ etc.Tolerance of Thickness+/-0.1, +/-0.05, +/-0.01 etc.Centration+/-2′,+/-1′ etc.Aperture N5, 1 etc.Irregularity ΔN2, 1, 0.5, 0.2 etc.Surface quality60/40, 40/20, 20/10, 10/5 etc.Silicon content>80%Strain and Temperature520ºCAnnealing temperature560ºCSoftening temperature820ºCIndex of refraction1.47Transmittance>=90%Elastic modulus E67KNmm-2Tensile strength40-120Nmm-2Processing temperature(104dpas)1220ºCCoefficient of thermal expansion(20-300ºC)3.3x10-6/K-1Poisson's ratio μ0.2Density(20ºC)2.23g/cm3Specific heat0.9Jg-1K-1Thermal conductivity1.2Wm-1K-1Water resistance(ISO 719)1 LevelAcid resistance(ISO 195)1 LevelAlkali resistance(ISO 695)2 LevelCML resistant glass rod glass rod Φ6 x 30mm300º
Production:Package:Company Information:Nantong Haisheng Optical CO.,LTD is located in Hai'an County, Nantong City, and we are the factory specializing in manufacturing high precision optical glass. Our company mainly produces all kinds of color filters, colorless optical glass, IR filters, UV filters, quartz glass, absorbing glass, coating filters, lens, prisms etc. And our products are widely used in digital camera, medical instruments, financial tools, high energy laser equipements, stage lamp-lighting etc.Contact:
Nantong Haisheng Optical Co.,LTD
Address: No 16, Huzhuang Group, Qutang Town, Haian County, Jiangsu Province, China
Tel: 0086-513-88628868
Fax: 0086-513-88628868
Mob: 0086-15850496394
Contact: Tina
Website:www.nthsgx.com