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High temperature tempered borosilicate glass tube

High temperature tempered borosilicate glass tube

PCHAO brand industrial sight glass give you professional custom!
Address:Room 1624, Jing Ye Gong Yuan Guo Ji, Jin Sui road and New Second Street intersection, Xin Xiang city, Henan Province, China
Phone: +8613569413718

Description of tempered borosilicate glass tube 

Tempered glass is a type of glass with evenly distributed compressive stresses on the surface which is made by heating float glass to nearly softening point and then cooling it down rapidly by air. During the instant cooling process, the glass exterior is solidified due to rapid cooling while the interior of glass is cooled down relatively slowly.This process will improve the glass exterior compressive stress and interior tensile stress resistance which can improve the overall mechanical strength of glass by gemination and result in good thermal stability.
borosilicate glass tube ,tempered borosilicate glass tube ,large diameter glass tube

Technical Date

Density 2.5 g/cm3
Hardness 5.5-6.5
Tensile strength >90 MPa
Compressive strength 40-90MPa
Bulk modulus ~37 GPa 
Rigidity modulus 31 GPa 
Poisson's ratio 0.2
Coefficient of thermal expansion 5.8×10-7 cm/(cmK) 
Thermal conductivity 6.2 W/(mK)
Softening point 500°C 
Annealing point 350°C 
Electrical resistivity >1018 Ωm
Dielectric constant 3.75 at 20°C 1 MHz


1, construction, building templates, decoration industry (for example: doors and windows, curtain walls, interior decoration, etc.)
2, furniture manufacturing industry (glass coffee table, furniture, etc.)
3, home appliance manufacturing industry (TV, oven, air conditioning, refrigerators and other products)
4, electronics, instrument industry (mobile phones, MP3, MP4, watches and clocks, and other digital products)
5, the automobile manufacturing industry (car windshield, etc.)
6, special industry (military use of glass)
If you are interested in the or need to consult, please call us +8613343800331.
Pan Chao special industrial glass, Customize your persoalised glass products.
Welcome sending your inquiry: Phone : +86 13343800331  Email: sales@panchaoglass.com

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Xinxiang Pan Chao Instruments Co., Ltd.

Tel: +86 13343800331

Contact person:Carrie Niu

Fax: 0373 303 0331