Calculate pressure vessel wall thickness and ratings using ASME standards for cylindrical and spherical vessels.
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Design pressure should include operating pressure plus safety margin
General purpose carbon steel for pressure vessels
Affects allowable stress values per ASME Section II Part D
Automatically set based on material and temperature
Per ASME Section VIII Div 1, UW-12
Typical: 1.5-3.0 mm carbon steel, 0-1.5 mm stainless steel
Choose between cylindrical or spherical pressure vessel based on your design requirements.
Input design pressure, vessel diameter, and material properties including allowable stress.
Enter joint efficiency and corrosion allowance based on ASME standards and your application.
The calculator applies ASME formulas to determine minimum required wall thickness.
Verify that calculated thickness meets safety requirements and code compliance.
The calculated minimum thickness required to safely contain the design pressure. This is before adding corrosion allowance.
Total required thickness including corrosion allowance. Use this value for material procurement and fabrication.
Built-in safety margin based on allowable stress vs. ultimate strength. ASME typically uses factors of 3.5-4 for pressure vessels.
Very thick walls may indicate need for different materials, lower design pressure, or alternative design approaches.
Compute required thickness or MAWP for cylindrical and spherical shells. Includes joint efficiency, corrosion allowance, thin‑wall checks, and quick volume/weight estimates.
Research‑backed pressure vessel calculator implementing ASME Section VIII Div. 1 formulas (UG‑27/UG‑32 concepts) for cylindrical and spherical shells. Compute required thickness, MAWP, hydrostatic test pressure, hoop/longitudinal stresses (thin‑wall) and Lamé thick‑wall stresses, plus volume and shell weight estimates with corrosion allowance and joint efficiency.
Required thickness, MAWP from thickness, hydrostatic test pressure, and stress checks.
Uses thin‑wall (UG‑27) when t ≤ D/10; otherwise applies Lamé equations for thick‑wall cylinders.
Temperature‑dependent allowable stresses with joint efficiency and corrosion allowance.
Volume, surface area, and estimated shell weight with density selection.
Pressure vessel calculator, ASME thickness calculator, MAWP calculator, hydrostatic test pressure, hoop stress, longitudinal stress, Lamé thick‑wall cylinder, spherical vessel thickness, joint efficiency, corrosion allowance, volume and weight of vessel, UG‑27 formulas.
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Important: This pressure vessel calculator is designed for preliminary engineering analysis and educational purposes using standard pressure vessel design formulas and established mechanical engineering principles. While calculations are based on recognized engineering standards and typical design practices, actual pressure vessel design involves complex factors including material properties, safety factors, code compliance (ASME, API, etc.), welding considerations, fatigue analysis, and specific operating conditions that require comprehensive engineering analysis. For actual pressure vessel design, fabrication, installation, or safety assessments, always follow applicable pressure vessel codes, obtain professional engineering review, and consult qualified pressure vessel engineers who can ensure compliance with safety standards and regulatory requirements for your specific application and operating environment.