PIPE WALL THICKNESS CALCULATION

PIPING SPEC: P3

Pipe base material - API 5L Gr.BDesign pressure, P = 4 56.88 PSIDesign temperature, T = 40 104

Formula used;

Reference code - ASME 31.3Min. required thickness(tm), inch t+c ----Page 19

where t, Pressure design thickness in inch (PxD) / 2(SE+PY) P, Internal design pressure in PSI D, Pipe outer diameter in inch S, Basic allowable stress PSI = 15000 PSI ----Page 162 E, Quality factor from Table A-1B = 1.0 ----Page 215 Y, Coefficient from table 304.1.1 = 0.4 ----Page 20 c, Corrosion allowance = 1.50 mm

Size (NB) D (mm) D (inch) P (PSI) S (PSI) E Y tm (mm) c (mm) Result

0.5" 21.3 0.8 56.88 15000 1.0 0.4 0.04 Sch.80 3.73 1.69 1.50 1.54 O.K0.75" 26.7 1.1 56.88 15000 1.0 0.4 0.05 Sch.80 3.91 1.71 1.50 1.55 O.K1" 33.4 1.3 56.88 15000 1.0 0.4 0.06 Sch.80 4.55 1.72 1.50 1.56 O.K1.5" 48.3 1.9 56.88 15000 1.0 0.4 0.09 Sch80 5.08 1.75 1.50 1.59 O.K2" 60.0 2.4 56.88 15000 1.0 0.4 0.11 Sch.40 3.91 1.77 1.50 1.61 O.K2.5" 73.0 2.9 56.88 15000 1.0 0.4 0.14 Sch.40 5.16 1.80 1.50 1.64 O.K3" 88.9 3.5 56.88 15000 1.0 0.4 0.17 Sch.40 5.49 1.84 1.50 1.67 O.K4" 114.3 4.5 56.88 15000 1.0 0.4 0.22 Sch.40 6.02 1.89 1.50 1.72 O.K6" 168.3 6.6 56.88 15000 1.0 0.4 0.32 Sch.40 7.11 2.00 1.50 1.82 O.K8" 219.1 8.6 56.88 15000 1.0 0.4 0.41 Sch.20 6.35 2.11 1.50 1.91 O.K10" 273.0 10.7 56.88 15000 1.0 0.4 0.52 Sch.20 6.35 2.22 1.50 2.02 O.K12" 323.9 12.8 56.88 15000 1.0 0.4 0.61 Sch.20 6.35 2.32 1.50 2.11 O.K14" 356.0 14.0 56.88 15000 1.0 0.4 0.67 Sch.20 6.35 2.39 1.50 2.17 O.K

Kg/cm2 (g) 0 C 0 F

selected schedule

selected thickness

(mm)

Manufacture allowance-

12.5% (mm)

Net. Available thickness

(mm)

PIPE WALL THICKNESS CALCULATION

PIPING SPEC: P4&P5

Pipe base material - SS TO ASME A 312 TP 304 (ERW) & SS TO ASME A 312 TP 316 (ERW)Design pressure, P = 8 113.76 PSIDesign temperature, T = 40 104

Formula used;

Reference code - ASME 31.3Min. required thickness(tm), inch t+c ----Page 19

where t, Pressure design thickness in inch (PxD) / 2(SE+PY) P, Internal design pressure in PSI D, Pipe outer diameter in inch S, Basic allowable stress PSI = 16700 PSI ----Page 162 E, Quality factor from Table A-1B = 1.0 ----Page 215 Y, Coefficient from table 304.1.1 = 0.4 ----Page 20 c, Corrosion allowance = 1.50 mm

Size (NB) D (mm) D (inch) P (PSI) S (PSI) E Y tm (mm) c (mm) Result

0.5" 21.3 0.8 113.76 16700 1.0 0.4 0.07 Sch.40S 2.77 1.73 1.50 1.57 O.K0.75" 26.7 1.1 113.76 16700 1.0 0.4 0.09 Sch.40S 2.87 1.75 1.50 1.59 O.K1" 33.4 1.3 113.76 16700 1.0 0.4 0.11 Sch.40S 3.38 1.77 1.50 1.61 O.K1.5" 48.3 1.9 113.76 16700 1.0 0.4 0.16 Sch.40S 3.68 1.83 1.50 1.66 O.K2" 60.0 2.4 113.76 16700 1.0 0.4 0.20 Sch.10S 2.77 1.87 1.50 1.70 O.K2.5" 73.0 2.9 113.76 16700 1.0 0.4 0.25 Sch.10S 3.05 1.92 1.50 1.75 O.K3" 88.9 3.5 113.76 16700 1.0 0.4 0.30 Sch.10S 3.05 1.98 1.50 1.80 O.K4" 114.3 4.5 113.76 16700 1.0 0.4 0.39 Sch.10S 3.05 2.08 1.50 1.89 O.K6" 168.3 6.6 113.76 16700 1.0 0.4 0.57 Sch.10S 3.40 2.28 1.50 2.07 O.K8" 219.1 8.6 113.76 16700 1.0 0.4 0.74 Sch.10S 3.76 2.47 1.50 2.24 O.K10" 273.0 10.7 113.76 16700 1.0 0.4 0.93 Sch.10S 4.19 2.67 1.50 2.43 O.K12" 323.9 12.8 113.76 16700 1.0 0.4 1.10 Sch.10S 4.57 2.86 1.50 2.60 O.K

Kg/cm2 (g) 0 C 0 F

selected schedule

selected thickness

(mm)

Manufacture allowance-10% (mm)

Net. Available thickness

(mm)

C SS S