International Science Community Association Research Journal of Recent Sciences 2277 - 2502 5 5 2016 May 2 Characterization of Corrosion Behavior of Low Carbon Steel Oil Pipelines by Crude Oil 7 13 EN E.T. Egoro 1 Department of Medical Laboratory Science (Chemical Pathology Option), Faculty of Basic Medical Sciences, College of Health Sciences, Niger Delta University, Wilberforce Island, P.M.B. 071, Bayelsa State, Nigeria S.O. Richard 2 Department of Medical Laboratory Science (Chemical Pathology Option), Federal Medical Centre, Yenagoa, Bayelsa State, Nigeria E.U. Lawani 3 Department of Medical Laboratory Science (Medical Microbiology/Parasitology Option), Faculty of Basic Medical Sciences, College of Health Sciences, Niger Delta University, Wilberforce Island, P.M.B. 071, Bayelsa State, Nigeria Dharkar Ninad 1 S.P.M. Science and Gilani Arts Commerce College Ghatanji Dist Yavatmal, 445301, India Kadhim F. Al Sultani 1 College of Materials Eng., Department of Material Engineering, Babylon University, Iraq Ahmed O. Al Roubaiy 2 College of Materials Eng., Department of Material Engineering, Babylon University, Iraq A.A. Duaa 3 College of Materials Eng., Department of Material Engineering, Babylon University, Iraq > Research Paper 2015 11 7 2016 May 2 Corrosion and erosion–corrosion in weld joints of petroleum pipelines were investigated by the studying the corrosion of carbon steel in crude oil and water extraction from oil. The experimental work tests of erosion- corrosion were done using special device which was designed according to (G 73) ASTM. The work tests were achieved using traditional weight loss technique to measure weight loss rates in (mpy) Unit, the tests above were done in pumped media and pumped media had constant pressure of 1 bar, flow rate Q = 36 L/min, temperature 25 ºC and pH = 6.56 for erosive-corrosive media. Weight loss method was used in which test specimens of carbon steel, with a known weights, were immersed in the oil for a total exposure time of 60 days and for 10 days in water. Metallographic observations and micro-hardness measurements were also performed on specimens taken from the parent metal, heat affected zone and weld metal. The obtained results clearly indicate a degradation of the mechanical properties of steel welds. Copyright@ International Science Community Association