Low-nickel austenitic stainless steel

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United States of America Patent

PATENT NO 9039961
APP PUB NO 20130039802A1
SERIAL NO

13643920

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Abstract

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The invention relates to a low-nickel austenitic stainless steel with high resistance to delayed cracking and the use of the steel. The steel contains in weight % 0.02-0.15% carbon, 7-15% manganese, 14-19% chromium, 0.1-4% nickel, 0.1-3% copper, 0.05-0.3% nitrogen, the balance of the steel being iron and inevitable impurities, and the chemical composition range in terms of the sum of carbon and nitrogen contents (C+N) and the measured Md3o-temperature is inside the area defined by the points ABCD which have the following values Point Md30° C. C+N % A−80 0.1 B+7 0.1 C−40 0.40 D−80 0.40.

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Patent Owner(s)

  • OUTOKUMPU OYJ

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kodukula, Suresh Tornio, FI 1 2
Talonen, Juho Helsinki, FI 5 10
Taulavuori, Tero Tornio, FI 3 15

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