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This calculator determines the minimum required thickness for straight pipe under internal pressure according to ASME B31.3 Section 304.1.2.
Outside Diameter
Inside Diameter
Pipe Wall Thickness
Mechanical Allowances
Design Pressure
Allowable Stress
Quality Factor
Weld Joint Strength Reduction Factor
Y Coefficient
Pressure Design Thickness
Minimum Required Thickness
Check Condition
Check Condition
Check Condition
Maximum Allowable Working Pressure
Process Piping ASME Code for Pressure Piping, B31
This calculator is intended exclusively for use by trained professionals. While every effort has been made to ensure the accuracy and reliability of the calculations provided, we do not guarantee that the information is complete, up-to-date, or suitable for any specific purpose. Users must independently verify the results and assume full responsibility for any decisions or actions taken based on its output. Use of this calculator is entirely at your own risk, and we expressly disclaim any liability for errors or omissions in the information provided.