Heat Bed Glass: 213*200*3mm
· 3mm Thick
· 200mm x 213mm
· Beveled edges for your safety
Borosilicate glass represents unmatched standardized glass for construction of plant and piping in the chemical, dyestuff, food pharmaceutical, petrochemical industries. Its steadily growing use is due to many advantages over conventional materials.
· Outstanding corrosion resistance
· Smooth pore free surface.
· Transparency
· Catalytic inertness.
· No effect on taste and odour.
· Physiological inertness.
The chemical and physical properties of any glass depends on a varying degree on chemical composition of glass.
CHEMICAL COMPOSITION
The composition of borosilicate glass used for chemical plants has following approximate composion.
SiO2 - 80.6% B2 O2 - 12.5%
Na2O - 4.2% Al2O3 - 2.2%
RESISTANCE TO CHEMICAL
Borosilicate glass is inert to almost all materials except hydroflouric acid (HF) phosphoric acid((H3Po4) and hot strong caustic solutions.
THERMAL PROPERTIES
Linear coefficient of thermal expansion
The coefficient of thermal expansion of borosilicate glass over the temperature 0 - 300°C is 3.3 x 10-6/°C.
Specific heat
Specific heat between 25°C and 300°C is average to be 0.233Kcal/Kg, °C
Thermal Conductivity
Thermal conductivity is 1.0 Kcal/hr,m°C. Over the permissible operating temperature range.
OPTICAL PROPERTIES
Borosilicate glass show no appreciable absorption in the visible region of spectrum and therefore appears clear and clour less.
WORKING TEMPERATURE
Provided borosilicate glass is not subject to rapid change in temperature, creating undue thermal shock, it can be operated safety at temperatures up to 250 °C.
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