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Formula: SiO₂ 81/ B₂O₃ 13/Na₂O 4
Form: Foil/Film/Sheet
Material: Borosilicate Glass
Commodity: Glasses
Thickness: 1.1mm
Side 1: 30mm
Side 2: 30mm
Borosilicate Glass Sheet is distinguished by its low thermal expansion (~3.3 × 10⁻⁶/°C), high chemical durability, and excellent optical transmission, making it a preferred choice for environments with extreme temperature fluctuations and chemically aggressive media. Its silica-boron oxide composition ensures superior thermal shock resistance while maintaining mechanical strength and stability. Industries such as electronics, optics, and renewable energy exploit these properties for demanding applications. Key uses include substrates for photovoltaic modules, precision optical windows, and dielectric components in high-frequency electronics. Research on borosilicate glass sheets extends into nanostructured coatings, composite integration, and electronic packaging, where control over dielectric properties and dimensional stability is critical. This combination of thermal, mechanical, and optical performance underpins its value in advancing both industrial production and scientific innovation across a wide spectrum of high-tech applications.
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Tolerances

Foil/Film/Sheet
Thickness ±20%

Material Properties for Glasses

Chemical Resistance
Element Value
Acids - concentrated 0
Acids - dilute 0
Alkalis 0
Halogens 0
Metals 0
Electrical Properties
Element Value
Dielectric constant 0
Dielectric strength( kV mm⁻¹ ) 0
Volume resistivity( Ohmcm ) 0
Mechanical Properties
Element Value
Poisson's ratio 0
Tensile modulus( GPa ) 0
Hardness - Knoop( kgf mm⁻² ) 0
Hardness - Vickers( kgf mm⁻² ) 0
Shear strength( MPa ) 0
Tensile strength( MPa ) 0
Fracture toughness( MPam(0.5) ) 0
Physical Properties
Element Value
Refractive index 0
Useful optical transmission range 0
Apparent porosity( % ) 0
Water absorption - saturation( % ) 0
Density( gcm⁻³ ) 2.23
Thermal Properties
Element Value
Melting point( C ) 0
Sublimation point( C ) 0
Upper continuous use temperature( C ) 0
Specific heat( J K⁻¹ kg⁻¹ ) 0
Thermal conductivity( W m⁻¹ K⁻¹ ) 0
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 0
Pultrusions
Element Value
Compressive strength( MPa ) 0

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