... Abstract UNS N08935 is a new versatile austenitic alloy with the composition 35Ni-30Fe-27Cr-6.5Mo-0.28N and a PREN of 52. It has an extreme pitting resistance which makes the grade a good candidate for O&G applications. The alloy is available in several strength levels with good ductility...

... Abstract Due to their low ratio of cost versus performances, quenched and tempered (Q&T) high strength low alloyed steels are widely used as tubular goods. For several decades, steel suppliers and academics are investigating the mechanisms of sour corrosion of these materials. Several...

... cycle. Overall, design of PWHT can be challenging to ensure not only meeting maximum hardness requirements but also ensuring meeting minimum design yield strength. This study investigates the austenite start and finish (A 1 and A 3 ) phase transformation temperatures as a function of heating rate...

... ABSTRACT Microstructure and strength affect hydrogen embrittlement (HE) susceptibility of martensitic steels. In order to understand their respective roles, two martensitic steels with the same chemical composition, but different strength (and or hardness) levels were selected. Incremental step load (ISL...

... of the mechanism, indicating that the conditions for susceptibility are very specific to the combination of variables stated above. Pipeline Corrosion riser corrosion liquified natural gas Subsurface Corrosion weld strength metals & mining LNG gas monetization Publication Division lme...

... and the performance of the coating was evaluated using pull-off adhesion strength, cathodic disbondment and Atlas cell wet thermal gradient tests. The strength of correlations among the roughness parameters and the FBE coating performance results were compared. Tortuosity, measured with a stylus profilometer...

... 121,000mg/l maximum (simulating formation water fluid); pH=6.0; pH 2 S=5kPa Corrosion Inhibition Upstream Oil & Gas strength steel Production Chemistry specification Publication Division laboratory Sulfide stress metals & mining H2S management SMSS texas 77084 specimen...

... ABSTRACT Low alloy steels are one of the most commonly used material systems in oil and gas fields as they can be heat treated to appropriate strength levels, including higher strengths such as 758 MPa (110 ksi) and 862 MPa (125 ksi) minimum yield strength, while providing economical...

... alloys which have a CPT of about 65°C and also higher than most Ni-base alloys. A consequence of the high nitrogen content in Alloy 35Mo is a good ductility and a high yield strength of more than 470 MPa for tested heat exchanger tubing in the solution annealed condition. This is higher than conventional...

... chemistry H2S management ECDA Pipeline Corrosion pipeline surface polymeric coating permission manuscript strength Publication Division coating anti-corrosion barrier texas 77084 Houston riser corrosion pipeline coating resistance field performance application indirect measure...

... J91540; “Low-carbon, martensitic stainless steel J91540; the maximum design tensile stress shall not exceed 2/3 specified minimum yield strength or 345 MPa (50 ksi) whichever is less.” The paper includes a historic perspective of NACE MR0175, results of NACE level VII tests, the ballot process including...

... to line nearly all of the energy producing wells in this field. The material proved to be an excellent choice and has given 20-25 years’ service life to date. Despite its excellent performance, Grade 29 is a high strength titanium alloy that is expensive to manufacture and finish. Recent wells (2012...

.... 1-3,12 flowline corrosion materials and corrosion Upstream Oil & Gas water management well integrity Pipeline Corrosion riser corrosion Subsurface Corrosion strength coating HDPE polyethylene plaque manuscript texas 77084 protection Publication Division Houston...

... UNS N08830 alloy results to other high strength CRA’s used in Oil and Gas subsea production equipment. INTRODUCTION Cases of Hydrogen Embrittlement affecting subsea equipment and components have been well documented for some time. 1,2,3 The source of embrittlement investigated in this study...

...: lightweight equipment, low alloy steel, wet H2S service, welding, SA-533 type E INTRODUCTION Weight reduction of more and more complex oil and gas production facilities has gained importance, especially for FPSO or FLNG units. For this purpose, low alloy high strength steels (ASME SA-533 type B or type C...

... diameter. Any rock shield material must also meet or exceed certain impact and tear strength testing, but also pass adequate cathodic protection currents to protect possible defects in the pipe coating. After struggling with a tedious application of traditional rock shield material, one group started...

.../ISO15156 condition analyzed. For an oilfield user perspective (especially for service equipment), AM 718 questionably requires all its properties to match that of API6CRA bar stocks; however, both yield strength and impact toughness values of AM 718 products should closely match the minimum values...

... is observed by both test methods in all three heats of different yield strength (120, 140 and 150 ksi). However, the degree of susceptibility between the three heats can only be differentiated in the rising displacement test. Despite the highest actual yield strength (161 ksi), the 150 ksi heat exhibits...

... for their unique combination of properties, anti-biofouling, non-sparking, resistance to cavitation corrosion, excellent wear properties and low magnetic permeability. One disadvantage has been lack of mechanical strength and copper-nickel-chromium (CuNi30Cr2) is a unique alloy developed to overcome this. It does...

... Hydrogen Embrittlement of High Strength Precipitation Hardenable Nickel Alloys Mike Dodge TWI Ltd. Granta Park, Great Abington Cambridge, CB21 6AL UK Kasra Sotoudeh TWI Ltd. Granta Park, Great Abington Cambridge, CB21 6AL UK Mike Gittos TWI Ltd. Granta Park, Great Abington Cambridge, CB21 6AL UK...