Low alloy steel and weld joint thereof excellent in...

Details Low alloy steel and weld joint thereof excellent in... Low alloy steel and weld joint thereof excellent in...

2002-11-15

2010-06-08

Yee, Deborah (Department: 1793)

Alloys or metallic compositions

Ferrous

Molybdneum containing

C420S089000, C420S092000, C420S119000, C420S124000, C420S128000

Reexamination Certificate

active

07731896

ABSTRACT:
The present invention provides a low alloy steel and a weld joint thereof excellent in hydrochloric acid corrosion resistance and sulfuric acid corrosion resistance, said low alloy steel containing, in mass,C: 0.001 to 0.2%,Si: 0.01 to 2.5%,Mn: 0.1 to 2%,Cu: 0.1 to 1%,Mo: 0.001 to 1%,Sb: 0.01 to 0.2%,P: 0.05% or less, andS: 0.05% or less,with the balance consisting of Fe and unavoidable impurities; and the acid corrosion resistance index AI of said low alloy steel being zero or positive.Here, said AI is given by the following expression,in-line-formulae description="In-line Formulae" end="lead"?AI/10,000=0.0005+0.045×Sb %−C %×Mo %,in-line-formulae description="In-line Formulae" end="tail"?where % means mass %.

REFERENCES:
patent: 3443934 (1969-05-01), Kubota et al.
patent: 3459538 (1969-08-01), Shoichi et al.
patent: 6608284 (2003-08-01), Nikodym
patent: B-43-014585 (1968-06-01), None
patent: B-46-034772 (1971-10-01), None
patent: 59-83748 (1984-05-01), None
patent: 59-83748 (1984-05-01), None
patent: 5-104282 (1993-04-01), None
patent: A-7-316745 (1995-12-01), None
patent: A-9-025536 (1997-01-01), None
patent: 9-279293 (1997-10-01), None
patent: 10-110237 (1998-04-01), None
patent: A-10-110237 (1998-04-01), None
patent: 410251797 (1998-09-01), None
patent: 11-1745 (1999-01-01), None
patent: 2000-17382 (2000-01-01), None
patent: 2000-17382 (2000-01-01), None
patent: 2000-73138 (2000-03-01), None
patent: 2000-73138 (2000-03-01), None
patent: 2000-73139 (2000-03-01), None
patent: 2000-256781 (2000-09-01), None
patent: WO 02/063056 (2002-08-01), None
Introduction to Steels and Cast iron, p. 3, Table 1.1 Essential and incidental elements in steel and cast iron, ASM.second edition, 1982.
Hand Book “Welding Materials and Instruments” Nippon steel Welding Products and Engineering. Cover, Contents, pp. 64, 65, 164, 165, 210 and 211, Jul. 20, 1997.
Journal of the Japan Institute of Metals, Abstract of 58thTokyo conference. Cover, Contents, p. 84, Mar. 15, 1966.
Technical Report of Fuji Steel, vol. 17, No. 2. Cover, Content, Colophon (p. 96), pp. 1 to 51, Jun. 1, 1968.
“Corrosion Resistant Steel Materials” The Japan Iron and Steel Federation. Cover, Contents, Colophon (p. 156), pp. 102-103, Mar. 1988.
Kowaka et.al., 1970, J. Japan Inst. of Metals 34:1017-1022.
Nippon Steel Catalog, “Sulfuric Acid Dew-Point Corrosion Resistant Steel S-TEN,” Cat. No. AC107 (Mar. 1997).

Affiliated with

Also associated with

Rating

Low alloy steel and weld joint thereof excellent in... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low alloy steel and weld joint thereof excellent in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low alloy steel and weld joint thereof excellent in... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4233975