STA 0.2mm 0.6mm wall thickness borosilicate glass tube
STA 0.2mm-0.6mm wall thickness borosilicate glass tube

STA 0.2mm 0.6mm wall thickness borosilicate glass tube

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STA  0.2mm-0.6mm wall thickness borosilicate glass tube

 

Description:

   Borosilicate glass tubing and rods made by us are well-known for their stability and pressure resistance, good workability and high thermal shock resistance. We have a very low rate of thermal expansion, which makes it an excellent material for laboratory glassware and for use in large-scale technological plants in the chemical apparatus industry. Our products are resistant to corrosion and remain absolutely neutral, even to aggressivechemicals, in nearly all fields of chemistry. This brings them a great advantage over other materials. Borosilicate glass is extremely resistant to water, acids, salt solutions, organic substances and halogens. Tubing, capillary and rod also have a high alkali resistance for physical and chemical properties.
Specifications:
Outer Diameter:30mm-400mm
Wall Thickness:0.5mm-10mm
standard length:1500mm or according per requirment
shape: round, flat,  tringle, hexagon
 
 
Chemical Compositions and Physical and Chemical Properties
 
Chemical Compositions and Physical and Chemical Properties of Borosilicate Glass Type 3.3
compositionSiO2B2O3R2OAl2O3Fe2O3
     weight%80.313.0 4.22.40.035
Physics performanceNumerical ValueUnit
Medium coefficient if linear expansion3.3±0.110-6K-1
Softening point820±10°C
Viscosity temperature510±10°C
Uper annealing temperature560±10°C
Thermal conductivity(20-100°C)1.2Wm-1K-1
Temperature for the specific electrical resistance240°C
20°C Demsity ρ2.23±0.02g/cm3
Endure water under 98 °CISO0719-HGB1/
Endure water under 121 °CISO0720-HGA1/
Acid-proof testNa2O≤100µg
Alkali-proof testISO0695/

 

Working point: 1,260±20°C4)

Softening point: 820±10°C5)

Density at 20°C: 2.23g/cm²6)

Hydrolytic resistance at 98°C: ISO719-HGB17)

Hydrolytic resistance at 121°C: ISO720-HGA18)

Acid resistance class: ISO1776-1 9)

Alkali resistance class: ISO695-A2

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