borosilicate heat-resisting glass tube tubes tubing pipes for indian

Material

borosilicate glass

Coefficient expansion

3.3

Hydrolytic  resistance at 98 ° C

ISO719-HGB1

Hydrolytic  resistance at 121 ° C

ISO720-HGA1

Acid resistance grade

ISO1776-First class

Softening point

820±10°C

Transformation temperature

525 ± 15 ° C

Working  point

1260 ± 20 ° C

Density at 20 ° C

2.23 ± 0.02 g/cm ³

Mean thermal conductivity(20°C-100°C)

1.2 w/m2k

Refractive index

0.92

OD

5-400mm

WT

0.8-10mm

End treated

Fine cutting, fire polished,scorched, grinding, sealed,etc.

Surface handlng

sandblast, decal,grinding,hole,painting,customers ’  logo

Usage

For labware,lighting accessories,lamp shade,smoking pipes,solar collector,tea sets,etc.