Corrosion of new 13Cr martensitic stainless steel OCTG in severe CO{sub 2} environment
- Kawasaki Steel Corp., Handa, Aichi (Japan)
Resistance of a new 13Cr martensitic stainless steel (0.025C-13Cr-4Ni-1Mo) to CO{sub 2} corrosion and to SSC was investigated and the application limit in oil and gas environments was clarified. The new 13Cr steel had a better CO{sub 2} corrosion resistance than the conventional 13Cr (0.2C-13Cr) due to Ni addition. The new 13Cr steel can be used at a CO{sub 2} pressure of up to 5mpa at 150 C, compared with that of only below 0.5MPa for the conventional 13Cr. The new 13Cr steel had also better SSC resistance. The new 13Cr steel did not crack in the U-bend test in the 5%NaCl solution saturated with 0.003MPa H{sub 2}S at 50 C, while the conventional 13Cr steel cracked. This is attributed to the decrease in dissolved hydrogen though the reduction of hydrogen production and penetration due to Ni addition.
- OSTI ID:
- 106095
- Report Number(s):
- CONF-950304--
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
03 NATURAL GAS
36 MATERIALS SCIENCE
CARBON DIOXIDE
CORROSION
CORROSION RESISTANCE
CORROSION RESISTANT ALLOYS
CORROSIVE EFFECTS
CRACK PROPAGATION
EXPERIMENTAL DATA
FIELD PRODUCTION EQUIPMENT
HYDROGEN EMBRITTLEMENT
METALLURGICAL EFFECTS
NICKEL
NICKEL ADDITIONS
PIPES
SODIUM CHLORIDES
STEEL-CR13
STRESS CORROSION