High-Purity Quartz Glass Products(Syntheic Quartz)

CoorsTek manufactures very large sized quartz glass tubes and chambers utilizing its superior welding technology and unique equipment. In particular, we are contributing to realize a "Clean Process" in the annealing process for very large substrates, such as FPD (Flat Panel Displays) like LCDs, and Solar Batteries. Also, we support new designs of very large sized quartz glass products based our production know-how accumulated over the years, experience, as well as our simulation technology.

Maximum size: phai2000 mm Tubes will be realized!

From the capability point of view, it is possible to manufacture tubes larger than 2000mm in size.

Product Images
Image of Very Large sized Quartz Glass Tubes
*It is also possible to manufacture square type tubes, too.

Chemical Analysis (Typical Data)

[ppm]

Grade Al Fe Na K Cu
T-1030 8 0.3 0.8 0.9 0.02
T-1630S 8 0.3 0.05 0.05 <0.01
T-1930S 8 0.3 0.05 0.05 <0.01
T-4040 0.1 0.05 0.05 0.05 <0.01
T-2030 8 0.5 1.0 1.0 0.02
T-2630 8 0.3 0.4 0.2 <0.01

Amount of Hydroxyl and Gas Released (Typical Data)

Grade Hydroxyl (OH)
Content (ppm)
Gas Released at 1000degrees
(ml/100g)
HydrogenGas Ratio
(volume %)
T-1030 200 1.5 75
T-1630S 200 1.5 75
T-1930S 200 2.1 90
T-2030 <1 0.1 0
T-2630 <1 0.1 0

Viscosity of Quartz Glass (Typical Data)

[degrees]

Grade Softening Point Annealing Point Strain Point
T-1030 1660 1190 1090
T-1630S 1660 1200 1100
T-1930S> 1660 1190 1090
T-4040 1590 1105 1000
T-2030 1670 1220 1130
T-2630 1670 1230 1140

Mechanical Properties (Typical Data)

Properties Unit Temperature[degrees] Quartz glass Measurement Product
Bulk density g/cm3 Room temp. 2.2 -
Hardness Mohs - 6 -
Young's modulus GPa Room temp. 72 -
500 76 -
900 79 -
Modulus of rigidity GPa Room temp. 31 -
500 34 -
900 35 -
Poisson's modulus - - 0.17 -
Bending Strength MPa Room temp. 105 Plate 10mm thickness, both surfaces finely ground
Room temp. 125 Round bar test piece, O.D. 10mm of appropriate length
Room temp. 113 Tube test piece, O.D. 10.1mm, wall thickness 0.8mm
Room temp. 99 Tube test piece, O.D. 10.5mm, wall thickness 1mm
500 123 Tube test piece, O.D. 10.5mm, wall thickness 1mm
900 149 Tube test piece, O.D. 10.5mm, wall thickness 1mm
Torsion Strength MPa Room temp. 46 -
Tensile Strength MPa Room temp. 48 Round bar test piece, O.D. 5mm of appropriate length
Room temp. 110 Round bar test piece, O.D. 0.7mm of appropriate length
500 113 Round bar test piece, O.D. 0.7mm of appropriate length
900 163 Round bar test piece, O.D. 0.7mm of appropriate length
1100 128 Round bar test piece, O.D. 0.7mm of appropriate length
Compressive Strength MPa Room temp. 130 Round bar test piece, O.D. 24mm of appropriate length

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