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ASME B31.3 Section 304.1.2 Pressure Design

Wall Thickness Calculator for Straight Pipe Under Internal Pressure

This calculator determines the minimum required thickness for straight pipe under internal pressure according to ASME B31.3 Section 304.1.2.

Pipe Size

Outside Diameter

Inside Diameter

Pipe Wall Thickness

Mechanical Allowances

Material Properties

Design Pressure

Allowable Stress

Quality Factor

Weld Joint Strength Reduction Factor

Y Coefficient

Results

Pressure Design Thickness

Minimum Required Thickness

Check Condition

\(T \gt t_m\)

Check Condition

\(t \lt \frac{D}{6}\)

Check Condition

\(\frac{P}{S*E} \leq 0.385\)

Maximum Allowable Working Pressure

References

Process Piping ASME Code for Pressure Piping, B31

Disclaimer

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.

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