Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1976-11-17
1978-07-25
Steiner, Arthur J.
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
75128A, 75128C, 75128E, 75128T, 148 38, C22C 3802, C22C 3806
Patent
active
041022254
ABSTRACT:
Nickel-chromium stainless steel is of austenitic composition specially controlled to enable achieving resistance to elevated-temperature oxidation and corrosion at desirably economical levels of alloy content as low as 10% chromium and 10% nickel. Oxidation and corrosion resistant characteristics of the steel particularly include resistance to air-water atmospheres and gasoline exhaust atmospheres that are cyclically heated and cooled with heating to temperatures as high as 1800.degree. F. and cooling to room temperature. Steel has special utility for automotive exhaust train components and is generally useful for cyclically heated structural articles.
REFERENCES:
patent: 2177454 (1939-10-01), Frevert et al.
patent: 3362813 (1968-01-01), Ziolkowski
patent: 3729308 (1973-04-01), Eiselstein et al.
patent: 3817747 (1974-06-01), Schultz et al.
patent: 3825417 (1974-07-01), Costello
patent: 3840366 (1974-10-01), Hirayama et al.
Kenny R. J.
MacQueen E. C.
Steiner Arthur J.
The International Nickel Company Inc.
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