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Line Pipe Diameter Wall Thickness And Mass Schedule

Calculate line pipe schedule diameter, wall thickness, mass and stress.

Use the Result Table option to display a table of results for the selected diameter or stress schedule. Refer to the help pages for more details about the tools.

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CALCULATOR : Line Pipe Diameter And Cross Section Area [FREE]   ±

Calculate line pipe wall cross section area, internal cross section area, and external cross section area from pipe diameter and wall thickness.

Select the pipe schedule type, diameter and wall thickness, or use the user defined option. Use the Result Table option to display a table of the diameter and cross section area versus wall thickness 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

Tool Output

  • AXi : Pipe Internal Contents Cross Section Area
  • AXo : Pipe External Displaced Cross Section Area
  • AXw : Pipe Wall Cross Section Area
  • ID : Nominal Inside Diameter
  • OD : Nominal Outside Diameter
  • OD/tn : Diameter Over Wall Thickness Ratio
  • tn : Nominal Wall Thickness
CALCULATOR : Line Pipe Schedule Outside Diameter Inside Diameter And Wall Thickness [FREE]   ±

Calculate line pipe internal diameter from diameter and wall thickness (for example for fluid flow calculations).

Select the pipe schedule (NPS or ISO etc), pipe diameter and wall thickness, or use the user defined option. Use the Result Table option to display the pipe schedule 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

Tool Output

  • ID : Nominal Inside Diameter
  • OD : Nominal Outside Diameter
  • OD/tn : Diameter Over Wall Thickness Ratio
  • tn : Nominal Wall Thickness
CALCULATOR : Line Pipe Inside Diameter And Cross Section Area [FREE]   ±

Calculate line pipe wall inside diameter and inside cross section area from pipe diameter and wall thickness.

Select the pipe schedule type, diameter and wall thickness, or use the user defined option. Use the Result Table option to display a table of the inside diameter and cross section area versus either outside diameter or wall thickness.

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

Tool Output

  • AX : Pipe Inside Cross Section Area
  • ID : Nominal Inside Diameter
  • OD : Nominal Outside Diameter
  • OD/tn : Diameter Over Wall Thickness Ratio
  • tn : Nominal Wall Thickness
CALCULATOR : Line Pipe Maximum And Minimum Diameter From Tolerance [FREE]   ±

Calculate line pipe maximum and minimum diameter from diameter tolerance.

Select the pipe schedule type, diameter, wall thickness and diameter tolerance, or use the user defined option. Use the Result Table option to display a table of the diameter and diametertolerance versus either wall thickness or diameter tolerance type.

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
  • dtoltype : Diameter Fabrication Tolerance Type
    • dxu : User Defined Diameter Fraction
    • dfu : User Defined Diameter Allowance
  • ddtype : Diameter Type

Tool Output

  • ID : Nominal Inside Diameter
  • ID* : Inside Diameter With Tolerance
  • OD : Nominal Outside Diameter
  • OD* : Outside Diameter With Tolerance
  • OD*/tn : Diameter Over Wall Thickness Ratio
  • df : Diameter Fabrication Allowance
  • dx : Diameter Fabrication Fraction
  • tn : Nominal Wall Thickness
CALCULATOR : Line Pipe Unit Mass And Unit Weight [FREE]   ±

Calculate line pipe mass per length and weight per length (dry empty, dry full, wet empty and wet full) from diameter, wall thickness and density.

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
  • wltype : Pipe Weight Type
  • ρi : Contents Fluid Density
  • ρe : Displaced Fluid Density

Tool Output

  • ρp : Pipe Density
  • ID : Nominal Inside Diameter
  • Mb : Displaced Fluid Mass Per Length
  • Mc : Contents Fluid Mass Per Length
  • Mp : Pipe Mass Per Length
  • OD : Nominal Outside Diameter
  • OD/tn : Diameter Over Wall Thickness Ratio
  • SG : Pipe Specific Gravity Relative To Displaced Fluid
  • W : Pipe Total Weight Per Length Including Contents and Buoyancy
  • tn : Nominal Wall Thickness
CALCULATOR : Line Pipe Unit Mass And Total Mass [FREE]   ±

Calculate line pipe unit mass and total mass (construction quantities) from pipe length, diameter, wall thickness and density.

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 : Line Pipe Yield Stress And Tensile Stress [FREE]   ±

Calculate line pipe SMYS (Specified Minimum Yield Stress), SMTS (Specified Minimum Tensile Stress), SMTS over SMYS ratio and SMYS over SMTS ratio.

Use the Result Table option to display the stress values for the selected stress table (click the Result Table button, and then click the make table button).

Tool Input

  • syutype : Stress Table Type
  • mattype : Material Type
    • SMYSu : User Defined Specified Minimum Yield Stress
    • SMTSu : User Defined Specified Minimum Tensile Stress

Tool Output

  • SMTS : Specified Minimum Tensile Stress
  • SMTS/SMYS : Tensile Stress Over Yield Stress Ratio
  • SMYS : Specified Minimum Yield Stress
  • SMYS/SMTS : Yield Stress Over Tensile Stress Ratio
CALCULATOR : Line Pipe Allowable Stress From Yield Stress [FREE]   ±

Calculate line pipe SMYS, SMTS and allowable stress SE and SEF from pipe stress tables.

The allowable stress is calculated by multiplying the SMYS times the quality factor E and the design factor F. The quality factor is used to account for casting quality, or longitudinal weld joint quality. The design factor is used to account for design risks (for pipelines requiring a high level of safety use a low design factor). Temperature derating is not included.

Select one of the API, ASME or DNV stress table options. The API stress values are taken from API 5L tables 6 and 7 (note the API 5L X series is superseded). The ASME stress values are taken from ASME B31.3 process piping table A-1M. The DNV stress values are taken from DNVGL ST F101 submarine pipelines, tables 7-5 and 7-11.

Use the Result Table option to display the stress values for the selected stress table (click the Result Table button, and then click the make table button).

Tool Input

  • syutype : Stress Table Type
  • mattype : Material Type
    • SMYSu : User Defined Specified Minimum Yield Stress
    • SMTSu : User Defined Specified Minimum Tensile Stress
  • efactype : Quality Factor Type
    • Eu : User Defined Quality Factor
  • ffactype : Design Factor Type
    • Fu : User Defined Design Factor

Tool Output

  • E : Quality Factor Or Joint Factor
  • EF : Design Factor (E x F)
  • F : Stress Factor
  • SEF : Allowable Stress
  • SMTS : Specified Minimum Tensile Stress
  • SMYS : Specified Minimum Yield Stress
CALCULATOR : Line Pipe Typical Material Properties [FREE]   ±

Calculate typical line pipe elastic modulus, shear modulus, bulk modulus, density, and thermal expansion coefficient of a solid.

The table values of Poisson ratio and bulk modulus are calculated from the elastic modulus and shear modulus. Project specific data should be used if it is available. Use the Result Table option to display a table of properties versus material type.

Tool Input

  • modptype : Material Type
    • Eu : User Defined Elastic Modulus
    • Gu : User Defined Shear Modulus
    • Ku : User Defined Bulk Modulus
    • νu : User Defined Poisson Ratio
    • ρu : User Defined Density
    • αu : User Defined Thermal Expansion Coefficient

Tool Output

  • α : Thermal Expansion Coefficient
  • ν : Poisson Ratio
  • ρ : Density
  • E : Elastic Modulus
  • G : Shear Modulus
  • K : Bulk Modulus
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