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Quick Details

  • Place of Origin: Hebei, China (Mainland)
  • Brand Name: bright pearl
  • Model Number: borosilicate glass
  • Product name: borosilicate glass
  • color: transparent clear or colored
  • Material: pyrex borosilicate
  • size: customized
  • Length: as per customers' request
  • Certificate: ISO9001
  • Package: carton box then in wooden
  • delivery time: confirmed according to the quantity
  • Application: Toughened glass
  • original place: Hengshui,Hebei,China

Packaging & Delivery

Packaging Details: Export cartons on fumigated wooden pallet
Delivery Detail: 15-20 days according to the quantity

high borosilicate glass tube

Physical data sheet


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 1
Hydrolytic resistance at 121ºC         ISO720-HGB 1
water resistance                       Grade 1              Test method: ISO1776
Acid resistant Class                   Grade 1              Test method: ISO1776

 

Contact information:

Hengshui Aohong International Trading Co.,Ltd

Tel: 0086 318 7089011   Fax: 0086 318 7080093

Skype:roselover52198    QQ: 281323768

WhasApp: +86 13473808273

 

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