Pipeng Toolbox : API 5L Pipe Grade Calculators Blank User
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API 5L Line Pipe SMYS And SMTS

Calculate API 5L line pipe specified minimum yield stress (SMYS) and specified minimum tensile stress (SMTS). API 5L yield stress is normally measured at 0.5% strain.

References :

API 5L : Specification for Line Pipe (2007)
ISO 3183 : Petroleum and Natural Gas Industries - Steel Pipe For Pipeline Transportation Systems (2007)

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CALCULATOR : Line Pipe Yield Stress SMYS And Tensile Stress SMTS (General) [FREE]   ±

Calculate API 5L yield stress SMYS and tensile stress SMTS from Table 7 PSL2 tensile test requirements.

The SMTS over SMYS ratio gives an indication of the material ductility. For ductile materials the SMTS over SMYS ratio should be approximately 1.7. Use the Result Table option to display a table of SMYS and SMTS versus material grade.

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