Pressure Determination of Fused Quartz

For applications where fused quartz tubing is exposed to internal pressures, the following formula helps determine the maximum pressure which can be applied at room temperature.

CFQ Rupture Formula For Tubing

S = pr/t 
Where:
S = Hoop Stress (Pa)
p = Working pressure (Pa)
r = Inside Radius of Tube (mm)
= Wall Thickness (mm)

This formula is not applicable when the internal pressure exceeds 7×105 Pa (100 psi).