Steel plate having excellent corrosion resistance and sulfide st

Details Steel plate having excellent corrosion resistance and sulfide st Steel plate having excellent corrosion resistance and sulfide st

1995-03-21

1998-10-06

Yee, Deborah

Alloys or metallic compositions

Ferrous

Copper containing

420 93, 420104, C22C 3820

Patent

active

058172750

ABSTRACT:
A steel plate comprising by weight C: 0.01 to 0.1%, Si: 0.02 to 0.5%, Mn: 0.6 to 2.0%, P<0.020%, S<0.010%, O<0.005%, Cr: 0.1 to 0.5%, Cu: 0.1 to 1.0%, Al: 0.005 to 0.05%, and Ca: 0.0005 to 0.005%, Mn, S, and O having respective contents regulated to satisfy a requirement represented by the formula Mn.times.(S+O).ltoreq.1.5 .times.10.sup.-2, and 0.01 to 0.1% in total of at least one member selected from the group consisting of Nb, V, and Ti with the balance consisting of Fe and unavoidable impurities. This steel plate has excellent corrosion resistance and sulfide stress cracking resistance in an environment containing carbon dioxide gas and hydrogen sulfide.

REFERENCES:
patent: 4153454 (1979-05-01), Toshihiko et al.
Key To Steels, 10 Edition 1974, W.Germany.
Patent Abstracts of Japan, vol. 17, No. 468 (C-1102(, Aug. 26, 1993 & JP-A-05 112844 (Kawasaki Steel Corp), May 1993.
Patent Abstracts of Japan, vol. 17, No. 426 (C-1094), Aug. 9, 1993 & JP-A-093243 (Kawasaki Steel), Apr. 16, 1993.

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