Corrosion behavior of 25 Pct Cr duplex stainless steel in CO/sub 2/-H/sub 2/S-C1/sup -/ environments

Journal Article · Wed Jun 01 00:00:00 EDT 1983 · J. Mater. Energy Syst.; (United States)

DOI:https://doi.org/10.1007/BF02833508· OSTI ID:5476367

Mukai, S; Ikeda, A; Kudo, T; Okamato, H

Effects of environmental factors and alloying elements on corrosion behavior of duplex stainless steels in CO/sub 2/-H/sub 2/S-Cl/sup -/ environments were investigated, and the corrosion resistance of DP3 Alloy (25Cr-7Ni-3Mo), which has been developed for hot sea water heat exchangers, was compared with that of other materials. The corrosion resistance of duplex stainless steels increased with the increase of Cr, Ni, and Mo contents in CO/sub 2/-H/sub 2/S-Cl/sup -/ and CO/sub 2/-Cl/sup -/ environments. SCC occurred on duplex stainless steels with Ni content below 6 pct, even in the H/sub 2/S-free conditions at high temperature. Low-temperature aging treatment increased the susceptibility to SCC of duplex stainless steels with lower Ni content. DP3 alloy is resistant to SCC at least up to the temperature of 250/sup 0/C (480/sup 0/F) in CO/sub 2/-Cl/sup -/ environments, though the application of this alloy to H/sub 2/S environments is limited.

• Research Organization: Sumitomo Metal Industries, Ltd., Central Research Laboratories 3, 1-chrome, Nishinagasu-Hondori, Amagasaki
• OSTI ID: 5476367
• Journal Information: J. Mater. Energy Syst.; (United States), Journal Name: J. Mater. Energy Syst.; (United States) Vol. 5:1; ISSN JMSMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
AGING
ALLOYS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHLORIDES
CHLORINE COMPOUNDS
CHROMIUM
CHROMIUM ALLOYS
CORROSION RESISTANCE
CORROSION RESISTANT ALLOYS
CORROSIVE EFFECTS
ELEMENTS
ENVIRONMENT
HALIDES
HALOGEN COMPOUNDS
HEAT EXCHANGERS
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
IRON ALLOYS
IRON BASE ALLOYS
LOW TEMPERATURE
MATERIALS
METALS
MOLYBDENUM
NICKEL
OXIDES
OXYGEN COMPOUNDS
SEAWATER
STAINLESS STEELS
STEELS
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENTS
WATER