glasses - available upon request

1.glasses, 2.type:JGS1/2/3, 3.can work in high temperature, 4.best service for 15 year, 5.use for lighting - more info check here: http://www.buymeasuringtools.com/glasses-10006695/

Quick Brief

Place of Origin: Jiangsu China (Mainland) Brand Name: SUBEI Model Number: available upon request Material: Glass Usage: Schools, military, police, medical, fina... Structure: Flat lens Shape: available upon request Brand: Subei color: white shape: square / round type: JGS1/2/3 size: make upon your request Application: military, lasers, metallurgy, opti... shipping: DHL UPS EMS material: quartz glass certification: ISO9002 tenet: attitude drtermine everything

Product Features:

1.glasses

2.type:JGS1/2/3

3.can work in high temperature

4.best service for 15 year

5.use for lighting

Business Terms:

Port: shanghai

Minimum Order Quantity: 1 Piece/Pieces

Supply Ability: 100000 Piece/Pieces per Month

Payment Terms: L/C,T/T

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Specifications and Product Details:

glasses

Our quartz glass optical windows are resistant against high temperature and

pressure and can be applied mainly in such fields as special light sources, optical

instrument, optical electronics, military equipment, metallurgy, semi-conductor, and optical communications. Their experimental temperature is 1200

degrees and softening temperature 1730 degrees. Detailed parameters are given

as follows:

1.JGS1( Extreme UV optical quartz glass)
It is a high purity optical quartz glass made by oxyhydrogen flame melting. Its

satisfactory UV light transmission performance surpass all the other glass types

in particular in the shortwave UV zone and can achieve a 90% transmission rate at

the wavelength of 185nm. Hence it is an ideal choice for applications in the wavelength range of 185-2500nm.

2.JGS2 (UV optical quartz glass)
It is an optical quartz glass made by oxyhydrogen flame melting and is suggested

for applications in the wavelength range of 220-2500nm.

3. JGS3 (Infrared quartz glass)
It has a good performance of infrared light transmission with a transmittance of

over 85%. It is recommended for applications in the wavelength range of 260-3500nm.

Quartz glass characteristics

Table 1.

Mechanical Property	Reference Value
Density	2.2g/cm3
Compressive Strength	1100Mpa
Bending Strength	67Mpa
Tensile Strength	48Mpa
Poisson's Ratio	0.14~0.17
Elastic Modulus	72000Mpa
Shearing Modulus	31000Mpa
Mohs Hardness	5.5~6.5

Table 2.

Mechanical Property	Reference Value
Deformation Point	1280°C
Softening Point	1780°C
Annealing Point	1250°C
Specific Heat(20~350°C)	670J/kg.°C
Thermal Conductivity(20°C)	1.4W/m.°C
Refractive Index	1.4585
Coefficient of thermal expansion	5.5×10-7cm/cm.°C
Hot work temperature	1750~2050°C
The temperature for a short time	1300°C
The temperature for a long time	1100°C

Table 3.

Electrics Property	Reference Value
Resistivity	7×107Ω.cm
Dielectric Strength	250~400Kv/cm
Dielectric Constant	3.7~3.9
Dielectric absorption coefficient	<4×104
Dielectric loss coefficient	<1×104

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