This paper discusses a study wherein the SSC resistance of 13Cr bar stock quenched and tempered to 22 HRC maximum hardness was tested and evaluated beyond the maximum H2S limit of 10 kPa (1.5 psi) established in NACE MR0175/ISO 15156-3 for use in sour service.
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This paper discusses two case histories in which 41XX low-alloy steel, quenched and tempered to 22 HRC maximum hardness, was used in longer-term downhole completion tools.
The focus of this paper is the welding metallurgy and weld metal properties of N07022 alloy. Evaluation of the N07022 weld metal microstructure will be discussed. Sour gas testing of N07022 weld overlay material will be highlighted. Mechanical properties will be presented.
This standard is now undergoing a critical review to determine how it should change to meet the future needs of the Oil & Gas Industry better. Where are we headed with NACE MR0175/ISO 15156? The results of our collective initial efforts are presented.