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Heat resistant curved borosilicate glass tube half cylinder tube glass
3D Printer Parts UM2 Borosilicate Glass Plate With 257*229*4mm for Ultimaker 2 3d printers
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Glass plate with MK3 aluminium heated bed
PCB heatbed with glass board
Borosilicate glass 3.3 is one of transparent colorless glass, through wavelength is between 300 nm to 2500 nm, transmissivity is more than 90%. Coefficient of thermal expansion is 3.3. It can acid proof and alkali , the high temperature resistant is about 450°C. If course handling , the high temperature resistant can reach 550°C or so. Apply to lighting fixture , chemical industry , electron, high temperature equipment and so on.
Borosilicate glass 3.3 has excellent transmission over the visible and NIR wavelengths working from 310nm to 2700nm. The surface quality is not as high as the BK7 versions.
Borosilicate glass 3.3 has excellent chemical and thermal-shock resistance and has a maximum working temperature of 500°C so are excellent for use in high powered light source applications or an excellent choice for cold and hot mirror substrates..
Borosilicate glass 3.3 specifications
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Product Name
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Borosilicate glass
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Density:
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2.23± 0.02g/cm3
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Hardness
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>7
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Tensile strength
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4.8×107Pa(N/M2)
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Bulk modulus
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93×103 M pa
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Modulus of rigidity
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3.1×1010Pa
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Young’s modulus
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63KN/mm3
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Compressive strength
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1200kg/ cm2
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Poisson’s ratio
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0.18
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Thermal expansion coefficient
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(0-300℃) (3.3±0.1)x10-6K-1
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Coefficient of thermal conductivity
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1.2W×(m×k) -1
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Specific heat capacity
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(20-100℃) 00.82kJx(kgxk)
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Softening point
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810±10 ℃
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The resistivity1gρ
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250℃ 8.0Ω×cm
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Dielectric coefficientε
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4.7
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Dielectric strength
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5 ×107V/M
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Dielectric loss factor
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tanσ(MC20℃)≤38 ×10-4
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Resistance to cold and hot shock
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280℃
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Continuous working temperature
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≤550℃
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Optical performance of borosilicate glass
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Light transmittance
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92%
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The refractive index
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1.47384
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The wavelength
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435.8nm=1.481, 479.9nm=1.4772 , 546.1nm=1.4732
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Borosilicate glass application
Chemical industry
Food package
Medical packaging
Substrates for dielectric coatings
Lighting applications
Optical filter coating substrates
Wafer substrates
Anodic bonding applications
Biotechnology
Photovoltaics
Environmental technology
Harsh environments
Neutron absorbers
Measurement and sensor technology
Sight glass and optical glass
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