LOW ALLOY STEEL HAVING EXCELLENT RESISTANCE TO GASEOUS CARBON DIOXIDE CORROSION AND HYDROGEN SULFIDE CORROSION AND LOW ALLOY STEEL LINE PIPE

PROBLEM TO BE SOLVED: To provide low alloy steel which has excellent resistance to gaseous carbon dioxide corrosion, and is most suitable for an oil well pipe and a line pipe for producing and transporting gas and petroleum used in the field of energy or for steel for a plant, and to provide a low a...

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Bibliographic Details
Main Authors NOSE KOICHI, ASAHI HITOSHI
Format Patent
LanguageEnglish
Published 09.10.2002
Edition7
Subjects
ALLOYS
BLASTING
CHEMISTRY
ENGINEERING ELEMENTS AND UNITS
FERROUS OR NON-FERROUS ALLOYS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
JOINTS OR FITTINGS FOR PIPES
LIGHTING
MEANS FOR THERMAL INSULATION IN GENERAL
MECHANICAL ENGINEERING
METALLURGY
PIPES
SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING
THERMAL INSULATION IN GENERAL
TREATMENT OF ALLOYS OR NON-FERROUS METALS
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To provide low alloy steel which has excellent resistance to gaseous carbon dioxide corrosion, and is most suitable for an oil well pipe and a line pipe for producing and transporting gas and petroleum used in the field of energy or for steel for a plant, and to provide a low alloy steel line pipe. SOLUTION: The low alloy steel having excellent resistance to corrosion by gaseous carbon dioxide and hydrogen sulfide has a composition which contains, by mass, <=0.3% C, 2 to 7% Cr, <0.2% Si, 0.02 to 1.5% Mn and 2 to 7% Al and in which the total of the Cr content and the Al content is >=5%, and which further contains, if required, Cu, Ni and Mo, and the balance iron with inevitable impurities. The low alloy steel line pipe uses the low alloy steel.
Bibliography:Application Number: JP20010102054