used in laboratory and chemical plants dia:3-42mm color: clear softening point: 820+/-10 Suit for super quality architectura

Regular diameter of our glass rod is 3-42mm, we can customize the unconventional specifications according to the customers’ demand

High borosilicate glass is a kind of material with high temperature resistanceUnder the condition of 20-300°C, coefficient of mean linear expansion is 3.3±0.1(10-6K-1)The color is clearpacking details: carton, we also pack the goods as the customer’s requirements.

Specifications

3.3 Borosilicate Glass Rod(Bar)1) Diameter: 3mm to 42 mm2) Length: below 3.0m3) MOQ: 1 MT4) Package:15-20KG/Carton

Rod(Bar) main content:

SiO2        above 81%

B2O3       above 13%

Na2O+K2O  above 4%

Al2O3       above 2%

3.3 Borosilicate Glass Rod(Bar)

Physical Property
No.	Physical performance	Numerical Value	Unit
1	Coefficient of mean linear thermal expansion(20°C,300°C)	3.3±0.1	10-6K-1
2	Transformation temperature	525±15	°C
3	Softening point	820±10	°C
4	Working point	1260±20	°C
5	Density at 20°C	2.23±0.02	g/cm3
6	Mean thermal conductivity(20°C-100°C)	1.2	w/m2k
7	Refractive index	0.92	1

Application:Suit for super quality architectural lamps

China clear high borosilicate glass rod 3.3 expansion rate