Boroslicate Clear Glass Cylinder (HHK1031)

• Color: Clear
• Application: Daily Use
• Type: Glass Tableware
• Glass Type: Melt Glass
• Property: Heat Resistant
• Material: Borosilicate 3.3
• Model NO.: HHK1031
• Size: Customized
• Transport Package: Carton Package
• Specification: SGS
• Trademark: Honhai
• Origin: Shandong
• HS Code: 70023200
• Production Capacity: 1000000/Day

Product Description

Glass cylinder


borosilicate COE 33 glass tube, also called as PYREX glass tube. 
Similar with Schott's DURAN or Kavalier's SIMAX
OD from 3mm till 350MM, wall thickness from 0.5MM till 10MM
 
 

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

 

Main Composition
SiO2	B2O3	Na2O+K2O	Al2O3
81	13	4	2

 

Chemical Property
Hydrolytic resistance at 98°C	ISO719-HGB 1
Hydrolytic resistance at 121°C	ISO720-HGA 1
Acid resistance Class	ISO1776-First Class