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SCHOTT DURAN®

Borosilicate glass

Description

SCHOTT DURAN® is a borosilicate glass recognized for chemical resistance, thermal stability and reliable performance in laboratory and industrial applications.

Attribute
Value
Process

Cutting; forming/tube processing; fabrication; cleaning; optical coating where applicable
Features

Chemical durability; thermal resistance; low thermal expansion
Substrate(s)
Color
Transmission Range (nm)
300 - 2700 nm
Refractive Index
1.473
Sheet Length - Max (mm)
1498.6mm
Sheet Width - Max (mm)
325mm
Knoop's Hardness kg/mm²
Softening Point °C
825°C
Annealing Point °C
560°C
Strain Point °C
518°C
Transformation Temperature (Tg) °C
525
CTE (Coefficient of thermal expansion) α in 10-6 · K-1 (20°C; 300°C)
3.3
Specific Heat Capacity (Cₚ) kJ/(kg·K) (20–100°C)
1498.6
Thermal Conductivity (ʎ) W/(m·K) (90°C)
1.2
Photoelastic Constant (nm/cm/MPA)
Can be strengthened?
No

Advantages

  • Excellent chemical durability
  • heat resistant
  • Low thermal expansion
  • thermal shock resistance

Applications

  • chemically resistant components
  • industrial windows
  • Laboratory glass
  • tubes
  • viewports

Industries

  • Industrial
  • Medical & Biomedical
  • Photonics & Electro-Optics