Factory Supply Heat Resistance Customized Size Borosilicate Sight Glass Tube

Factory Supply Heat Resistance Customized Size Borosilicate Sight Glass Tube — a sight / viewing glass. Specs, RFQ checklist and custom sizes to drawing.

Glass TubeType

Daily UseApplication

TransparentColor

Shandong Longguang Tianxu Solar Energy Co., Ltd.Supplier

Product type: Glass Tube. Application: Daily Use.

Overview

The Factory Supply Heat Resistance Customized Size Borosilicate Sight Glass Tube is supplied as a sight / viewing glass. Typical applications: Daily Use. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.

Specifications

Type	Glass Tube
Application	Daily Use
Color	Transparent
Supplier	Shandong Longguang Tianxu Solar Energy Co., Ltd.

Technical data

No.	Physical Performance	Numerical Value	Unit
1	Coefficient of meamlinear thermal expansion (20ºC-300ºC)	3.3+/-0.1	10-6K-1
2	Transformation temperature	525+/-15	ºC
3	Softening point	820+/-10	ºC
4	Working Point	1260+/-20	ºC
5	Density at 20ºC	2.23+/-0.02	g/cm3
6	Mean thermal conductivity(200-100ºC)	1.2	w/m2k
7	Refractive index	0.92	1

SiO2	B2O3	Na2O+K2O	Ai2O3
81	13	4	2

Hydrolytic Resistance at 98ºC	ISO719-HGB 1
Hydrolytic Resistance at 121ºC	ISO720-HGA 1
Acid Resistance Class	ISO1776-first class

What to specify when you request a quote

Glass type and thickness — name the glass and thickness.
Temperature and pressure — give working temperature, thermal shock and any pressure rating.
Strengthening and safety — state tempering, lamination or the safety standard.
Outline and edges — send a drawing with outline, holes and edge finish.

Engineering guides for this part

For material grades and coating options, see Borofloat 33 Glass: Material Selection for Precision Substrates. How parts like this are machined and finished is covered in Precision Bore Glass Tubing Processing: End-to-End Manufacturing for Industrial Buyers. For an application example, read Quartz Glass Windows for High-Temperature Appliance Modules. Before sending a drawing, check Thermal Conductivity of Quartz Glass & Fused Quartz: A Process Guide. A related standard product is Infrared Windows.

FAQ

Where is this sight / viewing glass used? expand_more

Listed applications: Daily Use.

What should I include in a quote request? expand_more

Include glass type and thickness, temperature and pressure, strengthening and safety and outline and edges, plus quantity and a drawing if the part is custom.