Method for producing high-strength duplex stainless steel

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United States of America Patent

PATENT NO 10407750
APP PUB NO 20160319391A1
SERIAL NO

15103357

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Abstract

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The invention relates to a method for producing a high-strength ferritic austenitic duplex stainless steel with the TRIP (Transformation induced plasticity) effect with deformation. After the heat treatment on the temperature range of 950-1150° C. in order to have high tensile strength level of at least 1000 MPa with retained formability the ferritic austenitic duplex stainless steel is deformed with a reduction degree of at least 10%, preferably at least 20% so that with a reduction degree of 20% the elongation (A50) is at least 15%.

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Patent Owner(s)

  • OUTOKUMPU OYJ

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Andersson, Jan-Olof Krylbo, SE 4 7
Oliver, James Fjärdhundra, SE 62 557
Schedin, Erik Uppsala, SE 3 8

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