Product Details

Square tempered furnace sight glass plate

Product Description

Square tempered furnace sight glass plate

Specification

1.High purity(sio2>99.996%).
2.Both sides polished.
3.Flame polished the edges.
4.Fewer bubble.

Size and shape
1.Size : Customized size available.

2.Shape : Round, Square, Rectangular and Various shapes available.

3.MAX Size : 1000mm×2000mm for Square shape

4.If the width is not more than 205mm, the max length we can supply is 3000mm.

Physical Properties

SIO2 :	99.9 %
Density :	2.2(g/cm3)
Degree of hardness moh' scale :	6.6
Melting point:	1732°C
Working temperature :	1200°C
Max temperature can reach in a short time :	1450°C
Acid tolerance:	30 times than Ceramics , 150 times than Stainless steel
Visible light transmittance :	above 93%
UV spectral region transmittance:	80%
Resistance value :	10000 times than ordinary glass
Annealing point:	1300°C
softening point:	1630°C
Strain point:	1200°C

Chemical composition(ppm)

AL	Fe	K	Na	Li	Ca	Mg	Cu	Mn	Cr	B	Ti
5-12	0.19-1.5	0.71-1.6	0.12-1.76	0.38-0.76	0.17-1.23	0.05-0.5	0.05	0.05	<0.05	<0.1	<1.0

Spectra transmission at1.0mm thickness

<220

255

280

315

350

590

780

93.2

93.4

Application

Widely used in the filed of semiconductor, metallurgy, chemical industry, electric light source, photo-communication, medical equipment, scientific instruments and so on.

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Square tempered furnace sight glass plate