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ASME B31.4 Oil And Liquid Pipeline

Calculate ASME B31.4 liquid pipeline schedules for diameter, wall thickness, mass, weight, and stress.

Use the Result Table option to display schedule tables. Refer to the links below for other options.

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

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CALCULATOR : ASME B31.4 Pipeline Diameter And Wall Thickness Schedule [FREE]   ±

Calculate ASME B31.4 oil pipeline diameter and pressure design wall thickness from pipe schedule or user defined diameter and wall thickness (ASME B31.4 section 403.2). For ASME B31.4 the pressure design thickness equals the nominal wall thickness minus the corrosion allowance (the fabrication tolerance is included in the design factor and is ignored).

Select the pipe schedule (NPS or ISO), pipe diameter and wall thickness, or use the user defined option. Use the Result Table option to display the pipe schedule with nominal wall thickness and pressure design wall thickness for the selected diameter.

Tool Input

  • schdtype : Line Pipe Schedule Type
  • diamtype : Line Pipe Diameter Type
    • ODu : User Defined Outside Diameter
    • IDu : User Defined Inside Diameter
  • wtntype : Wall Thickness Type
    • tnu : User Defined Wall Thickness
  • c : Wall Thickness Corrosion Allowance

Tool Output

  • ID : Nominal Inside Diameter
  • OD : Nominal Outside Diameter
  • OD/tn : Diameter Over Wall Thickness Ratio
  • tn : Nominal Wall Thickness
  • tp : Pressure Design Wall Thickness

CALCULATOR : ASME B31.4 Pipeline Mass Per Length And Total Mass Schedule [FREE]   ±

Calculate ASME B31.4 oil pipeline unit mass and total mass from pipe schedule or user defined pipe diameter and wall thickness.

Select the pipe schedule (NPS or ISO), pipe diameter and wall thickness, or use the user defined option. Use the Result Table option to display the pipe schedule with unit mass and total mass for the selected diameter.

Tool Input

  • schdtype : Schedule Type
  • diamtype : Diameter Type
    • ODu : User Defined Outside Diameter
    • IDu : User Defined Inside Diameter
  • wtntype : Wall Thickness Type
    • tnu : User Defined Wall Thickness
  • modptype : Material Property Type
    • ρpu : User Defined Pipe Density
  • L : Pipe Length

Tool Output

  • ρp : Pipe Density
  • ID : Nominal Inside Diameter
  • M : Pipe Total Mass
  • OD : Nominal Outside Diameter
  • OD/tn : Diameter Over Wall Thickness Ratio
  • m : Pipe Mass Per Length
  • tn : Nominal Wall Thickness

CALCULATOR : ASME B31.4 Pipeline Unit Mass And Unit Weight Including Contents And Buoyancy (Multi Layer Pipe) [FREE]   ±

Calculate ASME B31.4 oil pipeline unit mass and unit weight including contents and buoyancy. Select either dry empty, dry full, wet empty, or wet full for the unit weight calculation.

Select the pipe schedule, pipe diameter and wall thickness, or use the user defined option. The line pipe is the first inside layer. The line pipe wall thickness is either set from the selected schedule value, or the input value is used if the user defined wall thickness option is selected. Details for each layer are displayed in the output view at the bottom of the page. Use the Result Table option to display the results for the selected diameter.

Tool Input

  • schdtype : Line Pipe Schedule Type
  • diamtype : Line Pipe Diameter Type
    • ODu : User Defined Outside Diameter
    • IDu : User Defined Inside Diameter
  • wtntype : Line Pipe Wall Thickness Type
    • tnu : User Defined Wall Thickness
  • wltype : Pipe Weight Type
  • WTi : Pipe Liner Wall Thickness
  • ρi : Pipe And Liner Density
  • WTo : Pipe Coating Wall Thickness
  • ρo : Pipe Coating Density
  • ρf : Contents Fluid Density
  • ρb : Displaced Fluid Density

Tool Output

  • IID : Pipe Inner Diameter Including Liners
  • OD : Line Pipe Nominal Diameter
  • OOD : Pipe Outer Diameter Including Coatings
  • SG : Pipe Specific Gravity Relative To Displaced Fluid
  • mb : Displaced Fluid Mass Per Length
  • mc : Contents Fluid Mass Per Length
  • mi : Inner Layers Total Unit Mass
  • mo : Outer Layers Total Unit Mass
  • mp : Pipe Mass Per Length Including Liner And Coating
  • tn : Line Pipe Nominal Wall Thickness
  • w : Pipe Total Weight Per Length Including Contents and Buoyancy

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