STAINLESS STEEL RESISTANT TO DELAYED CRACKING AND A METHOD FOR ITS PRODUCTION

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United States of America Patent

APP PUB NO 20160145701A1
SERIAL NO

14901553

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Abstract

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The invention relates to a stainless steel exhibiting transformation-induced plasticity (TRIP) effect resistant to delayed cracking and to the method for producing the stainless steel. The resistance to delayed cracking in the stainless steel is achieved limiting the total hydrogen content of the stainless steel measured by inert gas fusion method below 4 weight ppm, preferably below 3 weight ppm by a heat treatment performed at the temperature range between 100° C. and 700° C. for 0.1-300 hours, preferably at 200-600° C. for 1-100 hours, and more preferably at 250-500° C. for 1-100 hours.

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Patent Owner(s)

Patent OwnerAddress
OUTOKUMPU OYJSALMISAARENRANTA 11 HELSINKI 00180

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Talonen, Juho Helsinki, FI 5 10

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