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ASME B31.4 Liquid Pipeline Allowable Stress

Calculate ASME B31.4 oil and liquid pipeline allowable stress for onshore and offshore pipelines.

Select the appropriate stress table (API, ASM, DNV etc), and material. Use the Result Table option to display the results for the selected stress table (click the Result Table button on the plot bar, then click the make table button). For metal pipeline the pressure design thickness equals the nominal wall thickness minus the corrosion allowance. Fabrication tolerance is ignored.

Reference : ANSI/ASME B31.4 : Pipeline Transportation Systems For Liquids And Slurries (2012)

Change Module :

ASME B31.4 Liquid Pipeline Branch Reinforcement Calculation Module
ASME B31.4 Liquid Pipeline Design Pressure Calculation Module
ASME B31.4 Liquid Pipeline Diameter And Wall Thickness Schedule Calculators
ASME B31.4 Liquid Pipeline Fluid Velocity And Flow Rate Calculation Module
ASME B31.4 Liquid Pipeline Fluid Volume And Mass Calculation Module
ASME B31.4 Liquid Pipeline Hoop Stress Calculation Module
ASME B31.4 Liquid Pipeline Hydrotest Pressure Calculation Module
ASME B31.4 Liquid Pipeline Local Pressure Calculation Module
ASME B31.4 Liquid Pipeline Mass And Weight Calculation Module
ASME B31.4 Liquid Pipeline Ripple Defect Calculation Module
ASME B31.4 Liquid Pipeline Stress Factor And Flexibility Calculation Module
ASME B31.4 Liquid Pipeline Wall Thickness Calculation Module
ASME B31.4 Liquid Pipeline Yield Stress Calculation Module
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More Allowable Stress Modules

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CALCULATOR : ASME B31.4 Section 403.2 Pipeline Allowable Stress (Onshore) [FREE] ±

Calculate allowable stress (SEF) for onshore pipelines (ASME B31.4 section 403.2).

The allowable stress equals the specified minimum yield stress (SMYS) times the weld quality factor (E) times the design stress factor (F). SEF = SMYS x E x F. Use the Result Table option to display the results for the selected stress table (API, ASME or DNV).

Tool Input

syutype : Line Pipe Stress Type
mattype : Material Type
- SMYSu : User Defined Specified Minimum Yield Stress
efactype : Weld Joint Quality Factor Type
- Eu : User Defined Quality Factor
loctype : Location Class
- Fu : User Defined Stress Factor

Tool Output

E : Weld Joint Factor
F : Design Stress Factor
SEF : Allowable Stress
SMYS : Specified Minimum Yield Stress

CALCULATOR : ASME B31.4 Section A402.3 Pipeline Allowable Stress (Offshore) [FREE] ±

Calculate allowable stress (SF) for offshore pipelines (ASME B31.4 section A402.3).

The allowable stress equals the specified minimum yield stress (SMYS) times the design stress factor (F). SF = SMYS x F. Use the Result Table option to display the results for the selected stress table (API, ASME or DNV). For offshore pipelines, line pipe with a weld quality factor (E) = 1 should be used.

Tool Input

syutype : Line Pipe Stress Type
mattype : Material Type
- SMYSu : User Defined Specified Minimum Yield Stress
loctype : Location Class
- Fu : User Defined Design Stress Factor

Tool Output

F : Design Stress Factor
SF : Allowable Stress
SMYS : Yield Stress