Nickel-chromium-alloy

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United States of America Patent

PATENT NO 9249482
APP PUB NO 20110272070A1
SERIAL NO

13124016

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Abstract

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A nickel chromium alloy with 0.4 to 0.6% carbon, 28 to 33% chromium, 15 to 25% iron, 2 to 6% aluminum, up to 2% silicon, up to 2% manganese, up to 1.5% niobium, up to 1.5% tantalum, up to 1.0% tungsten, up to 1.0% titanium, up to 1.0% zirconium, up to 0.5% yttrium, up to 0.1% nitrogen, remainder nickel, has a high oxidation and carburization stability, long-term rupture strength and creep resistance. This alloy is particularly suited as a material for components of petrochemical plants and for parts, for example tube coils of cracker and reformer furnaces, pre-heaters, and reformer tubes, as well as for use for parts of iron ore direct reduction plants.

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Patent Owner(s)

Patent OwnerAddress
SCHMIDT + CLEMENS GMBH + CO KG51789 LINDLAR

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Freiherr, Von Richthoffen Alexander Aachen, DE 1 9
Jakobi, Dietlinde Köln, DE 10 86
Karduck, Peter Würselen, DE 2 31

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