MATERIAL BEING RESISTANT TO CHLORIDE−CONTAINING MOLTEN SALT CORROSION, STEEL PIPE FOR HEAT EXCHANGER COATED WITH THE SAME, AND METHOD FOR PRODUCTION THEREOF

Title:

MATERIAL BEING RESISTANT TO CHLORIDE−CONTAINING MOLTEN SALT CORROSION, STEEL PIPE FOR HEAT EXCHANGER COATED WITH THE SAME, AND METHOD FOR PRODUCTION THEREOF

Document Type and Number:

WIPO Patent Application WO/2003/012155

Kind Code:

A1

Abstract:

A material being resistant to a chloride−containing molten salt corrosion which comprises Al and B in amounts of 40 to 99 wt % and 1 to 45 wt %, respectively, and contains a compound having Al and B&semi and a steel pipe coated with the material. The material exhibits especially excellent corrosion resistance when at least one compound selected from among AlB₂, AlB₁₂, Al₃BC and AlB₁₂C₂ forms a continuous phase. The above steel pipe is suitable for a heat exchanger used in a combustion furnace, a gasification furnace and the like for urban wastes and industrial wastes.

Inventors:

NISHIO HIROAKI

Application Number:

PCT/JP2002/007416

Publication Date:

February 13, 2003

Filing Date:

July 23, 2002

Export Citation:

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Assignee:

NIPPON KOKAN KK (JP)

International Classes:

B32B15/01; C22C1/05; C22C29/14; C22C30/00; C23C8/26; C23C24/08; C23C26/00; C23C30/00; F28F19/06; (IPC1-7): C22C32/00; C22C29/14

Domestic Patent References:

WO2001013057A1

2001-02-22

Foreign References:

JPS621834A	1987-01-07
JPS61235523A	1986-10-20
JPS58100653A	1983-06-15
US5925313A	1999-07-20
JPS4892237A	1973-11-30
JPH04333542A	1992-11-20
JPH01312044A	1989-12-15
JPH02258675A	1990-10-19

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