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Contact Person : Mr. Chai Slyvia
Company Name : Jinan Munan International Trade Co., Ltd.
Tel : 86-531-81180905
Fax : 86-531-88033316
Address : Shandong,Jinan,3-2-607, No. 101, Huayuan Road,
Country/Region : China
Zip : 250100

Borosilicate Glass

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Related Categories:Glass
Related Product Searches:Borosilicate Glass,High Quality,Borosilicate Glass, borosilicate glass tube3.3,borosilicate glass tube&rod

Borosilicate Glass borosilicate glass tubes are widely used in the laboratories, chemical factories

Physical data Borosilicate Glass

No.	Physics performance	Numerical Value	Unit
1	coefficient of mean linear thermal expansion(20ºC;300 ºC)	3.3±0.1	10-6 K-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±0.2	g/cm2
6	Mean thermal conductivity(20ºC-100ºC)	1.2	W/m.K
7	Refractive Index	0.92	l

Chemical Composition in approximate weight %( main components)

Item .	SiO2	B2O3	AL2O3	Na2O +K2O
%	81	13	2	3.08

Chemical Data:Hydrolytic resistance at 98ºC ISO719-HGB 1Hydrolytic resistance at 121ºC ISO720-HGB 1water resistance Grade 1 Test method: ISO1776Acid resistant Class Grade 1 Test method: ISO1776

Borosilicate Glass