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99588 WET H2S PERFORMANCE OF AS DELIVERED AND QUENCHED MODIFIED MARTENSITIC STAINLESS STEELS DETERMINED BY SSRT

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Product Number: 51300-99588-SG
ISBN: 99588 1999 CP
Author: T. Tanski, Th. Boellinghaus and H. Hoffmeister
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Application of modified low carbon (LC) martensitic stainless steels in the oil and gas industry is not only restricted to subsea flowlines, but is planned to be extended also to the topside equipment of production units. Since no service experience of such materials is available so far, the sour service tolerance of two typical LC 13 % Cr steels with different nickel and molybdenum contents has been investigated at free corrosion by the slow strain rate test (SSRT), predominantly in the state as delivered. For basic information on hardening. effects by welding, also a simple quenching procedure was applied to another test series. As a result, the nickel and molybdenum richer material maintained its sour service resistance at different pH and H2S levels in the NACE TM 0177- 96 standard solution also in the quenched condition. The lower alloyed steel exhibited an increasing susceptibility to sulfide stress cracking in the quenched condition, as compared to the as delivered state. Keywords: hydrogen absorption, sulfide stress corrosion cracking, low carbon martensitic stainless steel, slow strain rate test, free corrosion
Application of modified low carbon (LC) martensitic stainless steels in the oil and gas industry is not only restricted to subsea flowlines, but is planned to be extended also to the topside equipment of production units. Since no service experience of such materials is available so far, the sour service tolerance of two typical LC 13 % Cr steels with different nickel and molybdenum contents has been investigated at free corrosion by the slow strain rate test (SSRT), predominantly in the state as delivered. For basic information on hardening. effects by welding, also a simple quenching procedure was applied to another test series. As a result, the nickel and molybdenum richer material maintained its sour service resistance at different pH and H2S levels in the NACE TM 0177- 96 standard solution also in the quenched condition. The lower alloyed steel exhibited an increasing susceptibility to sulfide stress cracking in the quenched condition, as compared to the as delivered state. Keywords: hydrogen absorption, sulfide stress corrosion cracking, low carbon martensitic stainless steel, slow strain rate test, free corrosion
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Picture for 99584 EFFECT OF HYDROGEN SULFIDE PARTIAL
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99584 EFFECT OF HYDROGEN SULFIDE PARTIAL PRESSURE, PH, AND CHLORIDE CONTENT ON THE SSC RESISTANCE OF MARTENSITIC STAINLESS STEELS AND MARTENSITIC PRECIPITATION HARDENING STAINLESS STEELS

Product Number: 51300-99584-SG
ISBN: 99584 1999 CP
Author: D. D. Vitale
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Picture for Sulfide Stress Cracking (SSC) Resistance of AISI 420 Modified (13Cr) Martensitic Stainless Steel Bar
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51317--9645-Sulfide Stress Cracking (SSC) Resistance of AISI 420 Modified (13Cr) Martensitic Stainless Steel Bar

Product Number: 51317--9645-SG
ISBN: 9645 2017 CP
Author: Karthik Krishnan
Publication Date: 2017
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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.

 
Picture for 97061 SLOW STRAIN RATE TESTING OF CORROSION
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97061 SLOW STRAIN RATE TESTING OF CORROSION RESISTANT ALLOYS IN HIGH TEMPERATURE H2S ENVIRONMENTS

Product Number: 51300-97061-SG
ISBN: 97061 1997 CP
Author: K. Saarinen, E. Hamalainen, H. Hanninen
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