NDT.net Nov 2003, Vol. 8 No.11

Polar g -Ray Mode for Testing Weld Quality of Natural Gas Pipeline

A. M. Shahout
Head of Physics Department,
Faculty of Arts & Science,
Mergib University, Khoms-Libya
A. Sh. Mahmood
Physics Department, Faculty of Science,
Baghdad University,
Baghdad-Iraq.
Corresponding Author Contact:
Email: shahout@hotmail.com

Abstract

I Introduction

II Inspection of Weld Joints

III Conditions of Detection

VI Equipments, Materials and Accessories for Radiographic Inspection

V Standards of Welds Acceptability According to API Standard –1104

VI Results and Discussion:

Equipment: Ir192 Source: g-RAY Film Type D4 Inspection Technique: Polar Steel Grade: GRB
Final Conclusion Description and Location of Defect Density Sensitivity Film Number Pipe Weld Joint No. Location
Acceptable
Repair
Re-Shoot
Cut Out
OK
R
RX
CO
  W.T. (mm) Dia. (inch)
OK   3.1 2T 1 8.18 8 SAZV461 EKT125
OK   2.9 2T 2
OK   3.1 2T 3
OK   3.1 2T 1 8.18 8 SAZV462 EKT125
OK   3.1 2T 2
OK   3.1 2T 3
R Spherical porosity 0;3 3.1 2T 1 8.18 8 SAZV470 EKT125
OK   3.0 2T 2
R Spherical porosity 62;69 3.1 2T 3
Table 6: Radiographic inspection report for SLR7 station in EKT 125.

References:

  1. Maximlyuk, Y. V., 1999. Radiographic Inspection of Weld Joints. Quality System Procedures Manual (Moscow, 2nd. ed.) pp. 1-21.
  2. Pherigo, G. L., 1980. Radiography Method. (The American Society for Nondestructive Testing) p. 57.
  3. Quinn R. A., and Sigl C. C. (Eds.), 1980. Radiography in Modern Industry, (Eastman Kodak Company 4th. ed.) pp. 3-72.
  4. Shahout, A. M., Amer, S. M., 2002. Panoramic X-Ray Mode for Testing Weld Quality of Natural Gas Pipeline from Khoms City to Tripoli. Arab Universities J. Appl. Sci. Vol.2, No.7, pp.13-27.
  5. Wogan, G. J., 1980. Radix-D Densitometer. Directions for Use. pp. 1-4

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