Gas Pipeline Wall Thickness Calculator (ASME B31.8) 

(v1.00 Beta)

Pipeline O.D.

Inch

Corrosion Allowance

mm 

Initial Ovalisation

SMYS

MPa

Design Pressure

Design Temperature

Internal Fluid Density

kg/c.m

Sea Water Density

Tide (min)

Tide (max)

INPUT DATA:

Maximum Wave Height

C

MPa

Pipeline Wall Thickness (Hoop Stress)

mm

mm

inch

inch

%

kg/c.m

m

m

m

m

Water Depth

Riser Wall Thickness (Hoop Stress)

MPa

Elastic Modulus

Poisson's ratio

mm

Pipeline Wall Thickness (Buckle Propagation)

inch

Pipeline Wall Thickness (Collapse)

mm

inch

Notes:

1. Corrosion Allowance Is Simply Added to all Calculated Thicknesses
2. Riser Wall Thickness Is Calculated Maximum Differential Pressure in the Riser
3. The Algoritm Used for Calculating Pipeline Wall Thickness Due to Collapse Sometimes May Fail