MATERIAL-Laiyang Zhong Cheng Quartz Glass Co., Ltd.-Custom Fabrication of High Precision Glass Parts

MATERIAL

Quartz Glass

In the optical component, the domestic optical quartz glass can be mainly divided into three grades: JGS1, JGS2, and JGS3 according to the spectral application range:

1. JGS1 (Far Ultraviolet Optical Quartz Glass/ Synthetic Fused Silica)

It is an optical quartz glass melted with high purity hydrogenand oxygen. Excellent UV transmission performance, especially in the short-wave UV range, its transmission performance far exceeds that of all other glasses, with a transmittance of 90% at 185nm, which is an excellent optical material in the range of 185-2500nm.

2. JGS2 (Ultraviolet Optical Quartz Glass/ Fused Quartz)

It is an optical quartz glass melted with hydrogenand oxygen. It is a good material in the range of 220-2500nm.

3. JGS3 (Infrared Optical Quartz Glass)

It has high infrared transmission performance, the transmission rate can reach more than 85%. It is an optical material with a wavelength range of 260-3500nm.

Besides domestic materials, we also offer materials in all grades and specifications from major manufacturers such as Corning, SCHOTT and Heraeus. The material has high purity and uniformity, and the finished product has better and more stable performance. Depending on the customer's custom needs, considering the optical, mechanical and chemical properties of the material, we recommend more suitable materials or other specified materialsfor processing.

PHYSICAL PROPERTIES

Properties		Value
Mechanical Properties	Density	2.203g/cm³
	Compressive Strength	1100Mpa
	Bending Strength	67Mpa
	Tensile Strength	48.3Mpa
	Poisson's Ratio	0.14～0.17
	Young’s Modulus	72000Mpa
	Rigidity Modulus	31000Mpa
	Mohs Hardness	5.5～6.5
Thermal Properties	Deformation Point	1280℃
	Softening Point	1680℃
	Annealing Point	1210℃
	Specific Heat (20～350℃)	670J/kg.℃
	Thermal Conductivity (20℃)	1.4W/m.℃
	Coefficient of thermal expansion	5.5×10^-7cm/cm.℃
	Hot Work Temperature	1700～2000℃
	Short-time Use Temperature	1300℃
	Long-time Use Temperature	1100℃
Electrical Properties	Resistivity	7×10⁷Ω.cm
	Dielectric Strength	250～400Kv/cm
	Dielectric Constantε	3.7～3.9
	Dielectric absorption coefficient	<4×10⁴
	Dielectric loss coefficient	<1×10⁴

Refractive Index

1.45845

Optical Property

CHEMICAL PROPERTIES

Quartz glass is a chemically stable material that does not react with water, salt solutions and most acids, only hydrofluoric acid can corrode quartz glass. Quartz glass is very sensitive to all alkali and alkaline earth compounds, the extremely slight traces of these compounds willcause the crystallization of quartz glass at high temperatures.

Solution	Treatment condition	Corrosion capacity
H2O	95℃ 45 Hours	1~2×10-7g/cm2
98%H2SO4	20℃ 2 Hours	1.4×10-8 g/cm2
60%HNO3	20℃ 2 Hours	5.0×10-8 g/cm2
36%HCl	20℃ 2 Hours	15×10-8 g/cm2
5%NaOH	100℃ 10 Hours	1.35×10-3 g/cm2
1%KOH	98℃ 2 Hours	68×10-6 g/cm2

Typical Applications

lTemperature resistant sight glasses

l Front windows for UV lamps

l Sight glass for flame monitoring

l Material for mechanical quartz components

l Protective sight glass windows

l Glass for UV-disinfection applications

l UV-drying / curing systems

l Windows for the chemical industry

Welcome to contact us for more optional material!

SALES HOT LINE：+86 186 0079 8132

Beijing Sales & Technology R&D Center

Laiyang Production R&D Center

International Trade Department.

SALES HOT LINE：
+86 186 0079 8132

Links: Technical Support : cnwangju com

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