// Free Engineering Tool

Minimum Wall Thickness Calculator

Calculate the minimum required wall thickness for straight cylindrical pipes and shells under internal pressure to ASME B31.3, ASME VIII Division 1, EN 13480, EN 13445 or BS PD 5500, with the calculated thickness checked against all standard pipe schedules and the resulting MAWP returned for each.

Calculate the minimum required wall thickness for straight cylindrical pipes and shells under internal pressure. Selectable design code — ASME B31.3, ASME VIII Div.1, EN 13480, EN 13445 or PD 5500. Checks calculated thickness against all standard schedules and returns the MAWP for each.

設計規格

Outside Diameter D_o (mm)

設計圧力 (bar g)

材質

設計応力 f / S (N/mm²)

溶接継手効率/品質係数

腐食/エロージョン代 c (mm)

製造マイナス公差 (%)

確認するスケジュール

最小肉厚

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Calculated Min. Wall

—

+ Corrosion Allowance

—

Required Nominal Wall

—

mm (incl. mill tol.)

Inside Diameter (calc)

—

Design Stress Used

—

N/mm²

Joint Factor Used

—

スケジュール適合性とMAWP

ASME B36.10M

Enter inputs to generate schedule check table.

    Design stress values are approximate room-temperature values. Always verify against current code stress tables at the actual design temperature. For EN 13445 and PD 5500, thickness calculated by iteration on inside diameter.
    
  

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