... interaction approach is used for lockbolt systems. In order to close this knowledge gap, extensive experimental studies were carried out for lockbolt systems made from carbon and stainless steel. Tensile test pieces and bolting assemblies made from carbon steel were also investigated for reference...

..., and carbon steel can be chosen for pipeline materials, but a corrosion allowance of 4.5mm is 1565 required. Under this condition, the H2S concentration in the fuel gas at the outlet of the platform fuel gas system is 38.4ppm, which does not meet the standard of less than 13.2ppm required for steam boiler gas...

... rules regarding the verification of the fatigue strength of stainless steel bolts. A total of 286 fatigue tests at constant amplitude loading (CAL) up to 10 7 load cycles were carried out on bolting assemblies made from austenitic, duplex stainless steel and carbon steel in nominal sizes M6 to M20...

... government liquified natural gas hydrogen storage tank metals & mining hydrogen storage tank lng tank application carbon steel stainless steel hydrogen embrittlement liquid hydrogen material reliable evaluation program transformation ni steel alloy capacity liquefied storage tank...

... in linepipe steel. asia government steel mining bainitic steel strength japan government metals & mining ferrite-pearlite steel toughness test hydraulic fracturing hydrogen microstructure mpa gaseous hydrogen specimen carbon steel hydrogen concentration steel fracture toughness...

... transition behaviour as known from carbon steel. The objective of this contribution is to present the development and validation of the Master Curve concept and to show the applicability of the transition temperature correlation for duplex stainless steels based on experimental fracture toughness and Charpy...

... Abstract This paper presents results from AC corrosion tests on 25Cr duplex and cathodically protected carbon steel. The results show that the corrosion rate is independent of transfer current density (0–200 A/m 2 ) and power frequency (50-200 Hz) on cathodically protected carbon steel...

... ABSTRACT Carbon steels are the cost-effective materials of choice for pipelines and casings for sour service in the oil and gas industry. In this work hydrogen permeation, absorption and trapping was studied in several line pipe and OCTG steels. It is shown that H absorption in line pipe...

... ABSTRACT In this study, the effects of hydrogen and surface cracks on the tensile properties of torsional prestrained ferritic-pearlitic low-carbon steels were investigated. Even for a polished specimen without surface cracks, which are introduced during torsional prestraining, the tensile...

...-Gregerse et al., 2016). mechanical property reservoir characterization actual shaft marine transportation g-modulus measurement medium carbon steel microstructure strain gauge method freight & logistics services carbon content ship shaft power specimen mechanical strength energy...

..., the construction industry wishes to execute these types of connections in special cases, e. g. when special requirements exist with regard to corrosion resistance or for architectural reasons. Generally, the tightening behaviour of carbon steel HR and HV bolting assemblies according to EN 14399–3 and −4 cannot...

... deh grit pipeline anode specimen carbon steel power frequency circumference fluid dynamics Next Generation Heating of Subsea Oil Production Pipelines Jens Kristian Lervik1, Øyvind Iversen2, Kristian Thinn Solheim1 1SINTEF Energy Research Trondheim, Norway 2Nexans Norway AS, Oslo, Norway...

... alloy (CRA) lining. The novel design was qualified for reeling and subsequent service life, according to DNV-RP-A203. To provide further evidence that a high fatigue performance can be achieved before a carbon steel backing pipe is exposed to corrosive constituents, a qualification programme, detailed...

... corrosion property well integrity carbon steel riser corrosion high mn steel corrosion current upstream oil & gas sweet environment immersion time specimen subsurface corrosion resistance electrochemical corrosion property Electrochemical Corrosion Property of High Mn Steel in Sweet...

...-existing carbides, quenched to temperature range from 500 to 1000°C and held for time range from 30 to 2400s. The initiation of carbides precipitation was found as early as 30s. Higher carbon content in the model steels resulted in fast carbide precipitation. high mn steel inho lee carbon steel...

... as opposed to the option of carbon steel and chemical treatment with lower CAPEX cost but inherently possible higher OPEX costs. In many cases the comparative economic analysis can break even over a thirty year design life depending on the accuracy of the life cycle cost analysis and the project assumptions...

... ABSTRACT: The present study is motivated by the use of lined pipes in energy pipeline applications (oil, gas, etc.) where a corrosion-resistant thin-walled liner is fitted inside a carbon-steel outer pipe. The paper focuses on wrinkling of lined pipes (sometimes referred to as clad pipes...

... and in the Gulf of Mexico is the result of internal corrosion (DNV 2009). offshore water injection pipeline water injection pipeline life time assessment exposure period corrosion corrosion loss water management well integrity corrosion coupon riser corrosion pit depth carbon steel corrosion...

... ABSTRACT The reliability of cathodic protection(CP) on carbon steel buried in seamud containing Sulfate-reducing bacteria(SRB) was evaluated with emphasis on electrochemical impedance spectra(EIS) at different CP potentials. The relationship among CP potential, corrosion rate and bacteria...

... into reasonable estimates of elastic and plastic local stress-strain behavior at the stress raisers. calculation h2s management topper drill pipe selection materials and corrosion test result carbon steel welding oilfield chemistry drillstring design low carbon steel conle bonnen production...