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 Fused Quartz Machining
1.Piece; Disc; Window  
2.Vessel  
3. Flange  
4. Sleeve  
5.Granule  
6.Instruments  
7.Filler  
8.Ring  
9.Quartz Tubes  
10.Red radiate  
11.  
12.
 

Fused quartz piece Disc; Window

Type Application: Used by the window of High temperature high pressure
Character
Chemical analysis : (typical content ) Vitreous SiO2 99.9%
Li Na K Fe Al Ca Mg Cu Co B Ti Mn Ni OH
0.55 1.8 1.5 0.55 18.0 2.6 0.65 0.25 0.02 0.22 0.95 0.05 0.03   160
Dimensional Tolerances :
Size range available：
Maximum diameter 300 +/-0.4mm.
Bubbles and inclusions content
Number per 100cm3
Diameter 0.1 ~ 0.2mm less than 18
0.2 ~ 0.5 mm less than 2
greater than 0.5 mm 0
Applications windows
Price ： 80 ~ 260 USD$/kg
Thermal properties
Strain temperature 1075 degree Centigrade
Annealing temperature 1180 degree Centigrade
Softening temperature 1730 degree Centigrade
Working range 1700 -2100 degree Centigrade
Mechanical properties
Rigidity modulus 3.2X104 MPa
Density 2.2 g/cm2
Young's modulus 7.4X104MPa
compressive strength 2X104 MPa
Tensile strength 70 MPa
Shear strength 70 MPa
Thermal expansion coefficient 0.5x10-6 /oC
Physical Properties
Density [g/cm2] 2.2
Thermal Expansion
Coefficient [cm/cm oC ] 5.5x10-7
Softening Point [oC ] 1690
Annealing Point [oC ] 1215
Strain Point [oC ] 1120
Index of refraction 1.4585
Specific Heat [ J/kgoK ] 670
Young*s Modulus[psi] > 10.5x106
Electrical Resistivity
[ohm cm @ 350oC  ] 7x109
Dielectric Constant [@1MHz] 3.
Wavelenth through（% ）thickness:1mm
Wavelenth Synthetic Gas-smelting High IR Transmission
nm silica fused Quartz fused Quartz
 170 50 10 0
 180 80 50 3
 190 84 65 8
 200 87 70 20
 220 90 80 60
 240 91 82 65
 260 92 86 80
 280 92 90 90
 300 92 91 91
 320 92 92 92
 340 92 92 92
 360 92 92 92
 380 92 92 92
 400-2000 92 92 92
 2500  85  87  92
 2730  10  30  90
 3000  80  80  90
 3500  75  75  88
 4000  55  55  73
 4500  15  25  35
 5000   7  15  30
JD Quartz & Jewel Co.,Ltd. all rights reserved
Address : Beijing China    Fax:  86-010-65519794  
E-mail : quartzjd@sina.com    http://www.quartz-jd.cn.net
Modification date：05-11-15