3.3 borosilicate colored glass rod

Our company mainiy produces series of borosilicate glass product in various colors,rods and tubes in different sizes.The main featuer of our product is that it has the minimum expansion coefficient(a=3.3×10-6),stable resistance to heat and cold,good perfomance against the sudden temperature change(270℃),fine chemical stability(the water and alkali resistance reach the Grade A).This product has excellent property for making lamp oenaments and is noted by its antidecoloring,antiexplosion and antiexplosion. The products we are making are widely used for making various light decorations,utensils,ornaments and top-grade crafts.
Now the sales network in China is taking shape,meanwhile some items are stepping into the international market.
The available color of the giass club and tube:blue,green,light,yellow,amber,purple,pink and red
Detailed Product Description
1)Available colors:dark blue,light blue,amber,green,light yellow,pink,purple,red and opaque black
2)Regulary stocked rod diameter:4-36mm
3)Regulary stocked rod length:1,200mm
4)Customized sizes are available(outside diameter:3.5-46mm)
5)Main composition:
a)Sio2：80±0.5%
b)B2O3：13±0.2%
c)Al2O3：2.4±0.2%
d)Na2O（+K2O）：4.3±0.2%
6)Chemical properties:
a)Coefficent of mean linar thermal expansion (20/300℃):3.3±0.1(10-6K-1)
b)Transformation temperature:525±15℃
c)Working point：1.260±20℃
d)Softening point：820±10℃
e)Density at 20℃：2.23g/cm2
f)Hydrolytic resistance at 98℃：ISO719-HGB1
g)Hydrolytic resistance at 121℃：ISO720-HGA1
h)Acid resistance class：ISO1776-1
i)Alkali resistance class：ISO695-A2