ОТЛИВКА ИЗ ДУПЛЕКСНОЙ НЕРЖАВЕЮЩЕЙ СТАЛИ И СПОСОБ ЕЁ ИЗГОТОВЛЕНИЯ

    公开(公告)号:EA027733B1

    公开(公告)日:2017-08-31

    申请号:EA201001571

    申请日:2009-05-14

    Applicant: OUTOKUMPU OY

    Abstract: Изобретениеотноситсяк отливкеиздуплекснойнержавеющейсталивысокойобрабатываемостии способуееполучения. Предлагаемаяотливкаявляетсястабильнойв отношенииобразованияинтерметаллическихфази микроструктураотливкисодержит 30-70 об.% ферритаи 30-70 об.% аустенита. Приэтомотливкавключает, мас.%: до 0,05 углерода, до 1 кремния, 4-6 марганца, 21-22 хрома, 1,35-1,7 никеля, до 1 молибденаи/иливольфрама, присоотношении (Mo+W/2) менее 1%, до 1 медии 0,20-0,26 азотадляизмененияравновесияфаз, причемостальноесоставляютжелезои неизбежныепримеси.

    FERRITIC-AUSTENITIC STAINLESS STEEL

    公开(公告)号:CA2743741A1

    公开(公告)日:2010-06-24

    申请号:CA2743741

    申请日:2009-12-17

    Applicant: OUTOKUMPU OY

    Abstract: The invention relates to a duplex stainless steel having austenitic-ferritic microstructure of 35-65 % by volume, preferably 40-60 % by volume of ferrite and having good weldability, good corrosion resistance and good hot workability. The steel contains 0,005-0,04 % by weight carbon, 0,2-0,7 % by weight silicon, 2,5-5 % by weight manganese, 23-27 % by weight chromium, 2,5-5 % by weight nickel, 0,5-2,5 % by weight molybdenum, 0,2-0,35 % by weight nitrogen, 0,1 -1,0 % by weight copper, optionally less than 1% by weight tungsten, less than 0,0030 % by weight one or more elements of the group containing boron and calcium, less than 0,1 % by weight cerium, less than 0,04 % by weight aluminium, less than 0,010 % by weight sulphur and the rest iron with incidental impurities.

    9.
    发明专利
    未知

    公开(公告)号:FI20080666A

    公开(公告)日:2010-06-20

    申请号:FI20080666

    申请日:2008-12-19

    Applicant: OUTOKUMPU OY

    Abstract: The invention relates to a duplex stainless steel having austenitic-ferritic microstructure of 35-65% by volume, preferably 40-60% by volume of ferrite and having good weldability, good corrosion resistance and good hot workability. The steel contains 0.005-0.04% by weight carbon, 0.2-0.7% by weight silicon, 2.5-5% by weight manganese, 23-27% by weight chromium, 2.5-5% by weight nickel, 0.5-2.5% by weight molybdenum, 0.2-0.35% by weight nitrogen, 0.1-1.0% by weight copper, optionally less than 1% by weight tungsten, less than 0.0030% by weight one or more elements of the group containing boron and calcium, less than 0.1% by weight cerium, less than 0.04% by weight aluminium, less than 0.010% by weight sulphur and the rest iron with incidental impurities.

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