...Abstract Molybdenum-containing martensitic stainless steels, particularly grades with 95-110 ksi specified minimum yield strength and nominally 1 to 2 wt% Mo, are some of the most commonly used materials for production tubulars in offshore wells. H₂S-related cracking at low or room...

... as well as the large range of corrosion resistance justify the use of super martensitics in oil and gas production fields. Nevertheless with UNS 17400, which is largely used, some in-service failures have occurred. In this context, the super martensitic stainless steel 15Cr5Ni0.8Mo, which has good...

.... The same situation was observed when testing in formation water conditions. The data also show a large increase in the SSC resistance when the seam welds were grit blasted prior to pickling and passivation. SSC welding martensitic stainless steels application limits INTRODUCTION Up to now very few...

... compositions in cracking failures. Two different Martensitic stainless steels (85 ksi and 110 ksi) in the form of stressed C-ring coupons were tested in ten different heavy brine systems at 177⁰C (350⁰F). The different brine systems examined contained combinations of zinc and calcium...

... performed by scanning electron microscope (SEM) and optical microscope, respectively. Transmutation martensitic stainless steels stress corrosion cracking hydrogen-embrittlement localized corrosion constant-load slow-strain-rate C-ring U-bent polarization fractography and metallography...

... underpin the quality and significance of the data, are described initially. Diffusion data are then presented for martensitic stainless steels, duplex stainless steels and nickel-base alloys and discussed in the context of the microstructural characteristics of the material. Hydrogen diffusion...

... martensitic stainless steels for the liner. UNS N09825 UNS N06625 UNS N08535 martensitic stainless steels localized corrosion pitting crevice sulfide stress cracking acceptance criteria INTRODUCTION This paper describes the work performed for the selection of materials for the well completion...

... on occurred corrosion events is also reported. CO₂ corrosion carbon steel erosion corrosion flow induced localised corrosion martensitic stainless steels tubing INTRODUCTION Overview of Abu Attifel Oil Field Abu Attifel is an onshore oil field located in the Sirte Basin, 400 Km South East...

... that of the standard 13Cr (which tends to corrode generally) and that of 22Cr duplex in the same conditions (which is fully passive). martensitic stainless steels standard 13Cr modified 13Cr corrosion interference films electrochemical testing INTRODUCTION Of the corrosion resistant alloys used downhole...

... International . 9 Miyata   Y. , Yamane   Y. , Furukimi   O. , Niwa   H. and Tamaki   K. ., “ Corrosion of New 13Cr Martensitic Stainless Steel OCTG in Severe CO2 Environment ”, CORROSION/95 , paper no. 83 , ( Houston, TX, USA , 1995 , NACE International ). 10 Asahi   H...

... relieving carbon steels hydrogen embrittlement SSC forming tubulars coiled tubing 13% Cr 22% Cr martensitic stainless steels duplex stainless steels INTRODUCTION Shortly after sulfide stress cracking (SSC) of carbon and low alloy (CLA) steels surfaced as a major problem in oil and gas production...