B31(1).11 Pipe Thickness Calculations

ASME B31.11 Slurry Transportation Piping Systems Code Minimum thickness of straight pipe under internal pressure (paragraph 1104.1.2) Pipe Pipe spec specif ific icat atio ion n  API 5L X60 Subarc welded 60,000 minimum yield strength of pipe

t Pi

0.500 Design wall wall thickness thickness of pipe pipe 2400 Internal Internal Design Design Pressure Pressure

20 Nominal Outside Outside Diameter Diameter of Pipe (inches) (inches) D E 1.00 Joint Efficiency Efficiency from from table 1102.4.3 1102.4.3 S= 0. 0.80 E x Minimum yield strength of pipe S 48000 Allowable Stress Value per paragraph 1103.2.1 t = 0.500 inch Pipe Pipe spec specif ific icat atio ion n  A139 Grade B spiral welded 35,000 minimum yield strength of pipe

t Pi

1.071 Design wall wall thickness thickness of pipe pipe 2400 Internal Internal Design Design Pressure Pressure

D 20 Nominal Outside Outside Diameter Diameter of Pipe (inches) (inches) E 0.80 Joint Efficiency Efficiency from from table 1102.4.3 1102.4.3 S= 0. 0.80 E x Minimum yield strength of pipe S 22400 Allowable Stress Value per paragraph 1103.2.1 t = 1.071 inch Pipe Pipe spec specif ific icat atio ion n  A139 Grade C spiral welded 42,000 minimum yield strength of pipe

t Pi

0.290 Design wall wall thickness thickness of pipe pipe 650 Internal Internal Design Design Pressure Pressure

D 30 Nominal Outside Outside Diameter Diameter of Pipe (inches) (inches) E 1.00 Joint Efficiency Efficiency from from table 1102.4.3 1102.4.3 S= 0. 0.80 E x Minimum yield strength of pipe S 33600 Allowable Stress Value per paragraph 1103.2.1 t = 0.290 inch

Formula

t=

PiD 2S

Pipe Pipe spec specif ific ica a A139 Grade 46,000

t Pi

0.815 2400

20 D E 0.80 S= 0. 0.80 E S 29440 t =   0.815 Pipe Pipe spec specif ific ica a A139 Grade 52,000

t Pi

0.721 2400

D 20 E 0.80 S= 0. 0.80 E S 33280 t =   0.721 Pipe Pipe spec specif ific ica a API 5L X65 El 65,000

t Pi

0.188 650

D 30 E 1.00 S= 0. 0.80 E S 52000 t =   0.188

 

ion spiral welded minimum yield strength of pipe Design wall thickness of pipe Internal Design Pressure Nominal Outside Diameter of Pipe (inches) Joint Efficiency from table 1102.4.3

Minimum yield strength of pipe  Allowable Stress Value per paragraph 1103.2.1 inch  

ion spiral welded minimum yield strength of pipe Design wall thickness of pipe Internal Design Pressure Nominal Outside Diameter of Pipe (inches) Joint Efficiency from table 1102.4.3

Minimum yield strength of pipe  Allowable Stress Value per paragraph 1103.2.1 inch  

ion ectric resistance welded minimum yield strength of pipe Design wall thickness of pipe Internal Design Pressure Nominal Outside Diameter of Pipe (inches) Joint Efficiency from table 1102.4.3

Minimum yield strength of pipe  Allowable Stress Value per paragraph 1103.2.1 inch