Metal treatment – Stock – Containing over 50 per cent metal – but no base metal
Patent
1986-09-24
1988-05-10
Yee, Deborah
Metal treatment
Stock
Containing over 50 per cent metal, but no base metal
148409, 148327, 420584, 420585, 420586, 138DIG6, C22C 3800, C22C 3844
Patent
active
047433183
ABSTRACT:
An iron-nickel-chromium-aluminum alloy containing about 30 to 40% nickel, about 15 to less than 19% chromium, about 2 to 4% aluminum, carbon in an amount of at least 0.05% and up to 0.2%, about 0.2 to 0.8% titanium, from 1.5 to 4% molybdenum, up to 0.1% boron, up to 0.5% zirconium, up to about 5% cobalt and the balance iron.
Alloy is characterized by (i) carburization resistance and (ii) stress-rupture strength which is desirable for ethylene pyrolysis tubing, (iii) highly oxidation resistant, (iv) cold workable such that mill product forms can be readily produced without deleterious cracking, (vi) ductile, (vii) structurally stable, i.e., will resist forming detrimental quantities of undesirable phases such as sigma, and (viii) weldable.
REFERENCES:
patent: 587492 (1959-11-01), Loveless
patent: 3690873 (1972-09-01), Fontaine
patent: 3754898 (1973-08-01), McGurty
patent: 3817747 (1974-06-01), Schultz et al.
patent: 3912552 (1975-10-01), Schultz et al.
patent: 4080204 (1978-03-01), Panzera
patent: 4086085 (1978-04-01), McGurty
patent: 4248629 (1981-02-01), Pons et al.
patent: 4312682 (1982-01-01), Herchenroeder
patent: 4385934 (1983-05-01), McGurty
patent: 4388125 (1983-06-01), Benn
patent: 4578130 (1986-03-01), Korenko
J. J. Moran and J. W. Schultz, "The High Temperature Corrosion Resistance of Iron-Nickel-Chromium Alloy Containing Some Aluminum", Apr. 3, 1967.
A. Schnaas and H. J. Grabke, "High Temperature Corrosion and Creep of Ni-Cr-Fe Alloys in Carburizing and Oxidizing Environments", Nov. 5, 1978.
D. E. Hendrix and Malcolm W. Clark, P.E., "Contributing Factors to the Unusual Creep Growth of Furnace Tubing in Ethylene Pyrolysis Service", Paper No. 21, Corrosion 85, pp. 21/1-21/11--Mar. 25-29, 1985, Sheraton Hotel.
Fischer John J.
Smith Gaylord D.
INCO Alloys International, Inc.
Kenny Raymond J.
Mulligan, Jr. Francis J.
Yee Deborah
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