high strength quartz glass tube/borosilicate glass tube
Color
Transparent
Composition
Na2O, B2O2, SIO2
Coefficient of thermal expansion/K
3.3+/-0.1*10-6
Density (g/cm3 at 25°C)
2.23±0.02
Knoop hardness
480
Flexure strength
24Mpa
Softening point (°C)
830±10
Annealing point (°C)
560 ±10
Transmittance(5mm)
>92%
포장 및 배송
포장 세부정보
Packing of high strength quartz glass tube/borosilicate glass tube:
Type 1. Carton or plywood+wooden case;
Type 2. Bubble wrap+polystyrene foam sheet+carton+wooden case