200-500 high temperature-resistant glass--Plat borosilicate glass 3.3

1.this kind of glass can resist 200-500 temperature 2. we can offer the sample for test 3. accordance with the customer need

Nantong Zhenhua Optical-electric Co., Ltd. specialing in the production of optical components,having a strong technical force,having sophisticated equipment,and detection means complete.

Plat borosilicate glass 3.3

Thermal properties

Maxiimun working temperature:

                           Short-term(10h) 500°C

                           Long-term(10h) 450°C

Viscosity of Glasses

Working point                         104dpas            1270°C

Softening point                       107.6dpas           820°C

Annealing point                       1013dpas             560°C

Strain point                           1014.5dpas           518°C

Transformation Temperature(Tg0                            525°C

RTG

less then 1 hour   110K

1-100hour 90K

more then100hour 80K

Glass Thickness             RTS

3.8mm                              175K

5.0-5.5mm                           160K

6.5-12.0mm                          150K

Technical Properties

Density(25°C)          2.3g/cm3

Young’s Modulus     E   63kn/mm3                               JC/T678-1997

Poisson’s Ratio     u   0.18                     JC/T678-1997

Bending strength         59.3MPa                 JC/T678-1997

Hardness             H   6                       GB/T16534-1996

Thermal Properties

Coefficient of Linear Thermal   α   20-300°C            3.3*10-6k-1

Thermal conductivity           λ(90°C)                 1.2W*(M*K)-1

Specific Heat Capacity         Cp(20-100°C)             0.83K1*(kg*k)-1

Chemical Resistance

Hydrolytic resistance     according ISO 719/DIN 12 111     HGB 1

                       According ISO 720               HGA   1

Acid resistance         according ISO 1776/DIN 12 116     1

Alkali resistance         according ISO 695/DIN 52 322    A 2

Optical Properties

Wavelength λ(nm)     435.8     479.9     546.1     589.3     643.8       656.3

Index of Refraction n 1.48023 1.47685(nF) 1.47326(ne) 1.47145 1.46975(nc)   1.46925

Refractive index          nd(λ587.6nm)             1.47178

  

Panel size 1200*750mm 2000*800mm we will be happy to provide other sizes upon request

Test method: Plates of approximately 20*20cm2 are heated in an oven with recirculated air and then doused in the center with 50ml of room temperature water, at which less then 5%of the samples suffer breakage. The plates are abraded before heating with 220 grit sandpa-per to simulate typical surface condition during practical use.

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200-500 high temperature-resistant glass--Plat borosilicate glass 3.3