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Pipe Thickness Calculator ASME B31.1

by | Apr 25, 2020 | Piping | 0 comments

Pressure (P,psi)Outside Dia. (Do,mm)Max. Stress (S,psi)Joint Efficiency (E)Weld Reduction Factor (W)Thickness Coefficient (y)Corrosion Allowance (CA,mm)Mill Tollerance (MT,%)Min. Wall Thickness (tm,mm)Do/tm
30026013.7110.4212.5

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Notes:

  1. According to ASME B31.1:2018 (104.1.2)
  2. Table for Maximum Allowable Stress Values in Tension, ksi, for Metal Temperature, °F, (Not Exceeding)
  3. SMTS – Specified Minimum Tensile Strenght 
  4. SMYS – Specified Minimum Yield Strenght 
  5. LWJE [E] – Longitudinal Weld Joint Efficiency factor ( Table 102.4.3-1)
  6. [F] – Casting Factor
  7. LWSR [W] – Longitudinal Weld Strength Reduction factor (Table 102.4.7- 1)
  8. WTC [y] – Wall Thickness Coefficient, valid only for cases [Do/tm >6], (Table 104.1.2-1) 
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