Product Description
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Material
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COE 3.3 borosilicate glass
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Main Composition
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SiO2
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80±0.5%
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B2O3
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2.4±0.2%
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Na2O+K2O
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4.3±0.2%
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Chemical and Physical property
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Coefficient of thermal expansion(20°C/300°C)
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3.3±0.1(10–6K–1)
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Softening point
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820±10°C
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Melting point
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1260±20°C
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heat resistance temperature
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525±15°C
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Hydrolytic resistance at 98°C
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ISO719-HGB1
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Hydrolytic resistance at 121°C
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ISO720-HGA1
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Density at 20°C
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2.23g/cm3
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Acid resistance
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ISO1776-1
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Alkali resistance
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ISO695-A2
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Size available
O.D. from 5mm-300mm
W.T. from 0.8mm-10mm
Length: common 1220mm,
Max length for big tubing(diameter>18mm):3000mm,
Max.length for small tubing(diameter<18mm):2350mm
Regular specification of glass Tube(O.D.xW.T.):25x4.0mm,28x4.0mm,32x4.0mm,38x4.0mm,44x4.0mm,51x4.8mm
Color Available:
At present, we supply 22 colors glass tube and 43 colors glass rod.
All of the colors are developed and created by our own factory.
They are including Clear, light blue,dark blue, Green,Teal, Dark Amber, Amber,Jade Green, Mint Green,Yellow, Pink, Purple,Transparent Black, Opaque Black, Jade White, Opaque White, Milky TY Green, TY Green, Milky Violet, Milky Pink etc.
