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Ife Journal of Technology, Vol. 21(2), 43-48, 2012 43 _____ Full Paper ECO-FRIENDLY INHIBITORS FOR EROSION-CORROSION MITIGATION OF API-X65 STEEL IN CO2 ENVIRONMENT _____ O.O. Ige presence in production fluids and the shift towards deeper wells. Figure 1:Optical microscope image of API 5L X65 carbon steel after being polished and etched in API 5L X65 Çeliklerinin MAG Kaynak Yöntemi ile In this study, API 5L X65 steel pipes, used in natural gas and oil pipelines, was welded by the FCAW method using rutile flux-cored wire electrodes. The microstructure and mechanical properties of the samples were investigated.

API Steel Pipe API Seamless Pipe API 5L Line Pipe

Welded (Longitudinal):- Wall Thickness Schedule 5s Schedule XXS (heavier on request), API5L gr.B, API5L gr.X42 to X70 (PSL1 + PSL2), EN10210-1 S355J2H, ISO 3183 L245 L555 NE/ME, API 5L X42 ERW Pipe, API 5L X52 ERW Pipe Austenite Grain Growth Kinetics in API X65 and X70 Line In such context, the application of API 5L grade pipes such as X-65 and X-70, which is considered as high-strength low alloy (HSLA) steels, is presented as a potential solution to enhance the reliability in the operation of these pipes in hostile environments and consequently the attendance of almost strict details posted in the steel procurement specifications. By Authority Of - Public.Resource.OrgAmerican Petroleum Institute. 49 CFR 192.113. API 5L:Specification for Line Pipe. Specification for Line Pipe . Upstream Segment API SPECIFICATION 5L FORTY-THIRD EDITION, MARCH 2004 EFFECTIVE DATE:OCTOBER 2004 ERRATA DECEMBER 2004 . American Petroleum

Characterisation of weldment hardness, impact energy and

Oct 01, 2012 · The average mechanical properties of X65 steel are set out in Table 4 together with target values specified by API 5L. As can be seen from this data, the material tensile properties fulfilled the API specifications (yield strength > 448 MPa, tensile strength > 531 MPa) for X65 pipeline steel [2] . Corrosion Behaviour of Bitumen Coated API 5l X65 Steel API 5L X65 steel sample used for this research was obtained from SCC (Nigeria) Ltd, Ushafa, Abuja, Nigeria. The reagents used for Corrosion test was HCl with pHs of 2, 3, 4, and 7. The chemical composition of the X65 steel is as shown in Table 1. Table 1:Chemical composition of API 5L X65 low carbon steel. IJERT 2. 2 Samples Preparation Fatigue crack growth behaviour of semi-elliptical surface Feb 19, 2018 · Browse more than 70 science journal titles. Subject collections Read the very best research published in IOP journals. IOPcorporate IOP for R&D Science fueling innovation. IOPselect Articles from the past year selected by our editors. Publishing

Fatigue of X65 steel in the sour corrosive environmentA

Feb 03, 2021 · 1 INTRODUCTION. API-5L Grade X65 steel are commonly used to manufacture pipelines used to convey production fluids extracted by the oil and gas industry. 1, 2 The mechanical properties, cost, and availability are the main factors that determine the selection of steel. However, despite having modest resistance to uniform corrosion, this grade of steel is prone to localized corrosion (pitting GREEN INHIBITOR FOR API 5L X65 STEEL IN HCL 0.5 Msteel (API 5L X65) during the first step causes the formation of Fe 2+. The inhibition effect depends on inhibitor concentration and molecular structure. It is observed that, the inhibition efficiency of CA extract increases with increase in CA extract concentration. CONCLUSIONS Grade X65 and X70 Heavy Wall (up to 37mm in Thick) UOE Nov 26, 2013 · For this purpose, we manufactured API X65 and X70 heavy wall (up to 37mm in thick) UOE linepipe for sour service utilizing an advanced thermo mechanical control process (TMCP) employing the theoretical maximum cooling rate with water (the ultimate cooling rate) and homogeneous temperature distribution in accelerated cooling.

Hydrogen Effect on Fracture Toughness of API 5L X70, X65

Oct 31, 2011 · On the Relationship of Microstructure, Toughness, and Hardness Properties in a Submerged Arc Welded API-5L Grade X65 Pipeline Steel Section OMAE2014 The Effect of Microstructural Change on Fracture Behavior in Heat-Affected Zone of API 5L X65 Pipeline Steel Investigation of the Effect of pH on Stress Corrosion May 11, 2021 · In this study, impedance spectroscopy, slow strain rate tensile test, and scanning electron microscopy were used to investigate the susceptibility of API 5L X65 steel to stress corrosion cracking (SCC) in a sulfide brine solution with different pHs. According to the analysis of SSRT, steel was susceptible to SCC in a brine solution. Journal of The Electrochemical Society 165 The Journal of The Electrochemical Society, 165 (3) C171-C179 (2018) C173 Table I. Chemical composition of API 5L X65 carbon steel (wt%). Cr Mo S V Si C P Ni Mn Fe 0.14 0.16 0.009 0.047 0.26 0.13 0.009 0.36 1.16 Balance cylindrical UNS K03014 (API 5L X65) carbon steel, its chemical composition is shown in Table I. A Pt-coated Nb cylinder served as

Mechanical Characteristics of Submerged Arc Weldment in

Jan 17, 2011 · The mechanical properties of submerged arc weldment (SAW) in gas transportation pipeline steel of grade API X65 (65 ksi yield strength) were investigated. This steel is produced by thermo mechanical control rolled (TMC), and is largely used in Iran Reduction of hydrogen embrittlement of API 5l X65 steel Jun 14, 2018 · API 5L X65 pipe steel, with a minimum yield strength of 448 MPa (65 Ksi), was used as a substrate in our study. This type of steel is a widely used steel in the European oil and gas pipe network.