Maximum Allowable Working Pressure Calculator

Maximum Allowable Working Pressure Calculator calculator can be used to calculate the maximum allowable working pressure for a given set of parameters.

Input Parameters

Calculation Results

Calculation Formula

MAWP = (Material Strength - Corrosion Allowance) / Design Factor

Where:
Material Strength: The minimum tensile strength of the material
Corrosion Allowance: Additional thickness to account for corrosion
Design Factor: Safety factor used in design calculations

Result

Maximum Allowable Working Pressure Calculator Usage Guide

Learn how to use the Maximum Allowable Working Pressure Calculator calculator and its working principles

How to Use the Calculator

  1. Enter the Material Strength in ksi (pounds per square inch).
  2. Enter the Corrosion Allowance in inches.
  3. Enter the Design Factor.
  4. Click the "Calculate" button to compute the Maximum Allowable Working Pressure.
  5. The result will be displayed in PSI (pounds per square inch).

Understanding the Formula

The MAWP is calculated by subtracting the corrosion allowance from the material strength and then dividing by the design factor. This ensures that the vessel can safely operate under the specified conditions while accounting for potential corrosion and safety margins.

Example

If the material strength is 60 ksi, the corrosion allowance is 0.1 inches, and the design factor is 0.6, the MAWP would be calculated as follows:

MAWP = (60 - 0.1) / 0.6 = 99.17 PSI