Fabrication of stainless steel foil utilizing chromized steel strip |
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Authors: | Edward A Loria |
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Affiliation: | (1) Division Metallurgist, Universal-Cyclops Steel Division, Cyclops Corporation, 15228 Pittsburgh, PA |
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Abstract: | Stainless steel foil has properties which are, in many respects, unmatched by alternative thin films. The high strength to
weight ratio and resistance to corrosion and oxidation at elevated temperatures are generally advantageous. The aerospace
and automotive industries have used Type 430 and 304 foil in turbine engine applications. Foil around 2 mils (5.1 × 10-3 cm) thick has been appropriate for the recuperator or heat exchanger and this product has also been used in honeycomb and
truss-core structures. Further, such foil has been employed as a wrap to protect tool steel parts from contamination during
heat treating. A large part of the high cost of producing stainless steel foil by rolling is due to the complicated and expensive
rolling mill and annealing equipment involved. A method will be described which produces (solid) stainless steel foil from
chromized (coated) steel which can be cheaper than the conventional processing stainless steel, such as Type 430, from ingot
to foil. Also, the material is more ductile and less work hardenable during processing to foil and consequently intermediate
annealing treatments are eliminated and scrap losses minimized.
Formerly with National Steel Corporation, Research and Development Department, Weirton, WV
An erratum to this article is available at . |
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Keywords: | |
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