Effects of metallurgical factors on service performance of duplex stainless steel for deep sour gas wells

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

DOI:https://doi.org/10.1007/BF02833536· OSTI ID:6728102

Saki, J; Kamomura, Y; Matsushima, I; Osuka, T; Tanimura, M

This paper deals with the effects of alloying elements on hot workability, mechanical properties, pitting corrosion, and stress corrosion cracking of duplex stainless steel. Test materials 20 to 30 pct Cr duplex stainless steels containing different amounts of Ni, Mo, N, and other elements. Corrosion resistance, tensile properties, and hot workability depend on ferrite content. Cr, Mo, and N are beneficial in improving resistance to pitting and general corrosion. Susceptibility to stress corrosion cracking in sour gas environments depends on microstructure. Based on these results, stainless steel containing 22 pct Cr-5.5 pct Ni-3 pct Mo-0.15 pct N for deep corrosive well service has been developed on a mill production basis. This tube has a ferrite content of about 50 pct and can be produced in three grades of yield strength, 9.4, 16, and 20 MPa (65, 110, and 140 ksi).

• Research Organization: Technical Research Center Nippon Kokan K.K., Kawasaki-Ku, Kawasaki
• OSTI ID: 6728102
• Journal Information: J. Mater. Energy Syst.; (United States), Journal Name: J. Mater. Energy Syst.; (United States) Vol. 5:2; ISSN JMSMD
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030300* -- Natural Gas-- Drilling
Production
& Processing
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CHROMIUM
CHROMIUM ALLOYS
CORROSION
CORROSION RESISTANCE
CORROSION RESISTANT ALLOYS
CRACK PROPAGATION
CRYSTAL STRUCTURE
ELEMENTS
ENERGY SOURCES
FABRICATION
FERRIMAGNETIC MATERIALS
FERRITES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HOT WORKING
IRON ALLOYS
IRON BASE ALLOYS
IRON COMPOUNDS
MAGNETIC MATERIALS
MATERIALS
MATERIALS WORKING
MECHANICAL PROPERTIES
METALLURGICAL EFFECTS
METALS
MICROSTRUCTURE
MOLYBDENUM
NATURAL GAS
NATURAL GAS WELLS
NICKEL
OXYGEN COMPOUNDS
PH VALUE
PITTING CORROSION
QUANTITY RATIO
STAINLESS STEELS
STEELS
TENSILE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TUBES
WELL CASINGS
WELLS
YIELD STRENGTH