borosilicate glass tube, pyrex glass tube

Specification for Tubing

3.3 borosilicate Glass tubing

Specification for Tubing

3.3 borosilicate Glass tubing

Acid resistance Class                test method:ISO1776    

Hydrolytic resistance at 121         ISO720-HGA 1

Hydrolytic resistance at 98          ISO719-HGB 1

Chemical Data:

81          13            4                2

SiO₂         B₂O₃           Na₂O + K₂O        Al₂O₃

Chemical Composition in approximate weight % (main components)

1

0.92

Refractive index

7

W/m.k

1.2

Mean thermal conductivity(20-100)

6

g/cm³

2.230.02

Density at 20

5

126020

Working point

4

82010

Softening point

3

52515

Transformation Temperature

2

10^-6 K^-1

3.30.1

coefficient of mean linear thermal expansion (20;300)

1

Unit

Numerical Value

Physics Performance

No.  Physical Data Triangle Rods, Square Rods, Ellipse Rods, Flat Rods,   Special Shape Rods: Triangle tube, Square tube, Ellipse tube, Flat tube, Outside Stripe tube, Inside Stripe Tube, hexangular Tube. Special Shape Tube: Color: clear, red, yellow, green, blue, purple, amber, pink various type borosilicate glass tube,tubing, neutral glass tube ,soda lime glass tube, clear&colored pyrex glass tube and rod available,