# Barlow's Formula

Barlow's Formula, abbreviated as Ba, relates to burst pressure, the point just before or at when a pipe or tubing fails under pressure.

## Formulas that use Barlow's formula

\(\large{ p_b = \frac{2 \; S \; t}{d} }\) |

### Where:

\(\large{ p_b }\) = burst pressure

\(\large{ S }\) = allowable stress

\(\large{ d }\) = inside diameter of pipe

\(\large{ t }\) = pipe thickness

Tags: Equations for Pressure Equations for Pipe Sizing Equations for Pipe