Steel plate having good corrosion resistance to condensed water

Details Steel plate having good corrosion resistance to condensed water Steel plate having good corrosion resistance to condensed water

1995-10-06

1997-01-07

Yee, Deborah

Alloys or metallic compositions

Ferrous

Nine percent or more chromium containing

420 60, 420 93, 420 92, 420104, C22C 3824, C22C 3808, C22C 3812

Patent

active

055913920

ABSTRACT:
The invention relates to a steel plate which exhibits a good resistance to a corrosive atmosphere, containing weakly acidic condensed water comprising SO.sub.2, Cl.sup.- ion, and CO.sub.2 such as the exhaust gas from a boiler which burns LNG.
The steel plate having a good corrosion resistance to condensed water characterized in comprising a low C content, a low Mn content and a medium amount of Cr content, and further 0.01% or less of S in an unavoidable impurity, or further comprising at least one element of Si, Al, Cu, Ni, Mo, Nb, V, Ti, Ca, and B. More, the steel plate having a good corrosion resistance to condensed water comprising carbonic acid gas and chloride ion characterized in comprising a low C content, a low Mn content, P, Cu and Ni, and further 0.01% or less of S in an unavoidable impurity, or further comprising at least one element of Si, Al, Mo, Nb, V, Ti, Ca and B.

REFERENCES:
patent: 4331474 (1982-05-01), Espy
patent: 4465525 (1984-08-01), Yoshimura et al.
Key To Steels, 10 Edition 1974, Germany.

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