ZAMEL & TURBAG CONSULTING ENGINEERS

Client SAUDI ARAMCO

Subject PIPE WALL THICKNESS CALCULATION BI/JO.
Based on ASME B 31.3 Drawing No..
Computer ZAHID Chk'd. By App'd By Date 6-Sep-2003 Rev. A

AS PER ASME B31.3,THE PIPE THICKNESS REQUIRED IS

t = PD
2(SE+PY)
THE MINIMUM PIPE THICKNESS REQUIRED CONSIDERING CORROSION AND
THREADING ALLOWANCES IF ANY
tm = t + c
THE NOMINAL PIPE THICKNESS REQUIRED CONSIDERING MILL TOLERANCE OF
-12.5%.
tn = tm
0.875

Where
P=MAXIMUM ALLOWABLE OPERATING PRESSURE( PSI)
D=OUTSIDE DIAMETER OF PIPE(INCH)
S= ALLOWABLE STRESS VALUE (PSI) FROM TABLE A-1
E=QUALITY FACTOR FROM TABLE A-1A OR A-1B(JOINT EFFICIENCY)
Y= COEFFICIENT FROM TABLE 301.1.1
C=CORROSION ALLOWANCE(INCH)
WORKING TEMPERATURE = 0
F

Page 2 OF 3 536762237.xlsx
Client SAUDI ARAMCO
Subject PIPE WALL THICKNESS CALCULATION BI/JO.
Based on ASME B 31.3 Drawing No..
Computer ZAHID Chk'd. By App'd By Date 29-Oct-2013 Rev. A

DESIGN DATA 10" API 5L GR.B PIPE (1CS1P2)

MATERIAL SPECIFICATION = A106 Gr. B

DESIGN CODE = ASME B31.3

CORROSION ALLOWANCE = 0.12 Inch.

DESIGN PRESSURE (P) = 51 Psig

DESIGN TEMPERATURE = 1940 F

ALLOWABLE STRESS(S) = 20000 Psig

OUTSIDE DIAMETER(D) = 16.000 Inch

JOINT EFFICIENCY FACTOR(E) = 0.7

COEFFICEIENT FROM TABLE 301.1.1(Y) = 0.4

CALCULATIONS:
THE PIPE WALL THICKNESS PER CODE B31.3 IS,
PIPE W.T, t = PXD = 816 = 0.029 Inch.
2 ( SE + PY) 28440.8
THE MINIMUM PIPE THICKNESS REQUIRED CONSIDERING CORROSION AND
THREADING ALLOWANCES IF ANY

PIPE W.T, tm = t+c = 0.149 = 0.149 Inch

THE NOMINAL PIPE WALL THICKNESS CONSIDERING MILL TOLERANCE OF -12.5%

PIPE W.T, tn = tm
0.875
PIPE W.T, tn = 0.1699 Inch

THE SELECTED PIPE WALL THICKNESS WILL BE 0.179 INCH. i.e SCHEDULE 80.

Page 2 OF 3 536762237.xlsx
 CALCULATION AND PIPE WALL THICKNESS PER ASME B31.3

P NPS D ALLOWABLE. t tm MILL tn SELECTED THK. SELECTED

PIPE MATERIAL. E Y C
(psi) (inch) (inch) STRESS (psi) (inch) (inch) TOLERANCE (inch) (inch) SCHEDULE
0.0838 -12.50%
640 1 1.315 API 5L GR B 20000 1.00 0.40 0.063 0.0208 0.0957
0.0930 -12.50%
640 1.5 1.900 API 5L GR B 20000 1.00 0.40 0.063 0.0300 0.1063
0.1005 -12.50%
640 2 2.375 API 5L GR B 20000 1.00 0.40 0.063 0.0375 0.1149
0.1183 -12.50%
640 3 3.500 API 5L GR B 20000 1.00 0.40 0.063 0.0553 0.1352
0.1341 -12.50%
640 4 4.500 API 5L GR B 20000 1.00 0.40 0.063 0.0711 0.1532
0.1509 -12.50%
640 5 5.563 API 5L GR B 20000 1.00 0.40 0.063 0.0879 0.1724
0.1677 -12.50%
640 6 6.625 API 5L GR B 20000 1.00 0.40 0.063 0.1047 0.1916
0.1723 -12.50%
640 8 8.625 API 5L GR X60 25000 1.00 0.40 0.063 0.1093 0.1969
0.1992 -12.50%
640 10 10.750 API 5L GR X60 25000 1.00 0.40 0.063 0.1362 0.2277
0.2245 -12.50%
640 12 12.750 API 5L GR X60 25000 1.00 0.40 0.063 0.1615 0.2566
0.2404 -12.50%
640 14 14.000 API 5L GR X60 25000 1.00 0.40 0.063 0.1774 0.2747
0.2657 -12.50%
640 16 16.000 API 5L GR X60 25000 1.00 0.40 0.063 0.2027 0.3037
0.2911 -12.50%
640 18 18.000 API 5L GR X60 25000 1.00 0.40 0.063 0.2281 0.3326
0.3164 -12.50%
640 20 20.000 API 5L GR X60 25000 1.00 0.40 0.063 0.2534 0.3616
0.3417 -12.50%
640 22 22.000 API 5L GR X60 25000 1.00 0.40 0.063 0.2787 0.3906
0.3671 -12.50%
640 24 24.000 API 5L GR X60 25000 1.00 0.40 0.063 0.3041 0.4195
0.3924 -12.50%
640 26 26.000 API 5L GR X60 25000 1.00 0.40 0.063 0.3294 0.4485
0.4178 -12.50%
640 28 28.000 API 5L GR X60 25000 1.00 0.40 0.063 0.3548 0.4774
0.4431 -12.50%
640 30 30.000 API 5L GR X60 25000 1.00 0.40 0.063 0.3801 0.5064
0.4684 -12.50%
640 32 32.000 API 5L GR X60 25000 1.00 0.40 0.063 0.4054 0.5354
0.4938 -12.50%
640 34 34.000 API 5L GR X60 25000 1.00 0.40 0.063 0.4308 0.5643
0.5191 -12.50%
640 36 36.000 API 5L GR X60 25000 1.00 0.40 0.063 0.4561 0.5933
0.5445 -12.50%
640 38 38.000 API 5L GR X60 25000 1.00 0.40 0.063 0.4815 0.6223
0.5698 -12.50%
640 40 40.000 API 5L GR X60 25000 1.00 0.40 0.063 0.5068 0.6512
0.5952 -12.50%
640 42 42.000 API 5L GR X60 25000 1.00 0.40 0.063 0.5322 0.6802
0.6205 -12.50%
640 44 44.000 API 5L GR X60 25000 1.00 0.40 0.063 0.5575 0.7091
0.6458 -12.50%
640 46 46.000 API 5L GR X60 25000 1.00 0.40 0.063 0.5828 0.7381
0.6712 -12.50%
640 48 48.000 API 5L GR X60 25000 1.00 0.40 0.063 0.6082 0.7671
0.6965 -12.50%
640 50 50.000 API 5L GR X60 25000 1.00 0.40 0.063 0.6335 0.7960
0.7219 -12.50%
640 52 52.000 API 5L GR X60 25000 1.00 0.40 0.063 0.6589 0.8250
0.7472 -12.50%
640 54 54.000 API 5L GR X60 25000 1.00 0.40 0.063 0.6842 0.8539

Page 3 of 4 536762237.xlsx
 CALCULATION AND PIPE WALL THICKNESS PER ASME B31.3

P NPS D ALLOWABLE. t tm MILL tn SELECTED THK. SELECTED

PIPE MATERIAL. E Y C
(psi) (inch) (inch) STRESS (psi) (inch) (inch) TOLERANCE (inch) (inch) SCHEDULE
0.7725 -12.50%
640 56 56.000 API 5L GR X60 25000 1.00 0.40 0.063 0.7095 0.8829
0.7979 -12.50%
640 58 58.000 API 5L GR X60 25000 1.00 0.40 0.063 0.7349 0.9119
0.8232 -12.50%
640 60 60.000 API 5L GR X60 25000 1.00 0.40 0.063 0.7602 0.9408

Page 4 of 4 536762237.xlsx