... materials that are resistant to these aggressive environments. The main risk associated with the use of martensitic stainless steels is the risk of sulfide stress cracking under well shut-in conditions. The aim of this study is to evaluate the performance of supermartensitic stainless steels (13Cr-5Ni-2Mo...

... (17Cr-4.5Ni-3Mo-Cu-W: UNS No.S42825) by autoclave-based Four-Point Bent Beam (FPBB) testings. It was experimentally proved that martensitic stainless steel do not have a specific cracking-susceptible temperature range at around 80 °C to 100 °C (175 °F to 210 °F) where duplex stainless steel is said...

... in production and pipeline service”. The standard covered material requirements applicable to materials used for equipment covered by API specifications 6A and 6D and were not intended to include design requirements. Abstract Looking at martensitic stainless steels (MSS) NACE MR0175 / ISO 15156 lists six...

... or exposed to aggressive environments. In this paper, three modes of CRA failure observed at a client’s site were analyzed in a lab and mitigation strategies proposed. Tower trays near the top of a crude tower made of UNS S41008 martensitic stainless steel (SS) failed as a result of localized under-salt...

... results are described. small crack martensitic stainless steel crack electrochemistry stress corrosion cracking corrosion fatigue INTRODUCTION Characterising the growth rate of cracks in the small crack regime in aqueous solutions is a major challenge in applications where the time-dependent growth...

.... Martensitic Stainless Steel 17%Cr stainless steel Duplex Stainless Steel scale dissolver packages well stimulation deep water HP INTRODUCTION In high pressure (HP) wells are present challenging conditions for drilling and well completion operations. During the completion operations of these wells...

...). EXPERIMENTAL Material A seamless commercially available, quench and tempered martensitic Stainless Steel pipe, alloy UNS S42028, grade 125ksi was tested in this program. Abstract The recent development of high strength corrosion resistant alloy UNS S42028 has opened up opportunities for the use of cost...

... an API ⁽¹⁾ task group has reported instances of SCC failures of samples of martensitic stainless steel (MSS) tubing materials after 90-days exposure to formate brines in the presence of acid gases at high temperatures. This discrepancy between laboratory test results and field experience...

... different chloride contents and pH levels ranging from 4.0 to 5.5, plus hydrogen sulphide contents in the conditioning gas ranging from 0.5 to 100kPa. The results of this test program are presented as Sulfide Stress Cracking domain diagrams for both manufacturers alloy. Martensitic Stainless Steel UNS...

... HPHT conditions. For new and less commonly used materials, more testing will be required to qualify the fluid for these specifically. Martensitic stainless steel 13Cr nickel alloy duplex stainless steel cesium acetate caesium acetate brine HPHT XHPHT ultra HPHT stress corrosion cracking SCC...

...Abstract Effects of pH and H₂S on the corrosion resistance of the UNS S42000 steel (13% Cr martensitic stainless steel), the UNS S41426 steel (Super 13%Cr martensitic stainless steel) and the UNS S31803 steel (2205 duplex stainless steels) were studied. The test solutions contain 500...

... set in the well. The remainder of the 1.85 s.g. oil based mud was displaced by the heavier 2.0 s.g. cæsium formate mud. The two packers were manufactured from UNS N07718, super martensitic stainless steel UNS S41426, and the tubing joints were manufactured from super martensitic stainless steel UNS...

... of hardness values, were exposed to each environment at applied stress levels of 67% of their actual yield strength at the test temperature. Valves CA6NM Class B Martensitic Stainless Steel Hydrogen Sulfide (H₂S) Sulfide Stress Cracking (SSC) Stress Corrosion Cracking (SCC) Materials...

...EXPERIMENTAL PROCEDURE Abstract As a new corrosion resistant alloy (CRA), high strength 15Cr martensitic stainless steel (0.05C-15Cr-6Ni-2Mo-1Cu) offers an OCTG material for the completion of HTHP deepwater wells and large bore gas wells, due to a combination of high specified minimum yield...

...13Cr-5Ni-2Mo 110 ksi grade martensitic stainless steels are some of the most widely used corrosion resistant alloys (CRA) in oil and gas projects due to their relatively low cost, ease of manufacture, and good CO₂ corrosion resistance. These materials are susceptible to both sulfide...

... in a small portion of as-welded joint was measured with the use of GDS (Glow Discharge Spectrometer). The reason why a polished specimen did not show any SCC is also given. EXPERIMENTAL PROCEDURE Abstract Low Carbon-13%Cr martensitic stainless steels have been widely used for line pipe application because...

... combined with P_H2S and pH in environments where SSC is likely to occur. These mappings enable the definition of usage domains for Super 13% Cr stainless steel in sour service. Martensitic stainless steel 13% Cr Super martensitic stainless steel Super 13% Cr Sulfide Stress Cracking (SSC...

...According to the NACE MR0175/ISO15156 Standard, the use of martensitic stainless steel is limited to H₂S partial pressure of 0.1 bar (0.01 MPa) for pH values above 3.5. However, 13% Cr steel L80 grade has been successfully used in Field A up to 0.0145 bar (0.00145 MPa) H₂S...

... Microstructural characterization plasma transferred arc oilsands corrosion Nickel alloys martensitic stainless steel INTRODUCTION The production of sweet crude oil in the oilsands industry compromises a process that can be divided in to four different steps: mining operation ; where oil-saturated sand...

...Abstract Low C - 13%Cr martensitic stainless steels have been widely used in the oil and gas industries because of their high strength and excellent corrosion res istance in corrosive conditions. Recently, higher strength(over 110 ksi grade) corrosion resistant alloys have been requested from...