Economical antibacterial duplex stainless steel and preparation method thereof



The invention relates to economical antibacterial duplex stainless steel and a preparation method thereof, belonging to technical field of the steel alloy material. The nitrogen-containing economical antibacterial duplex stainless steel comprises the following components by weight percent: more than 0 and no more than 0.03% of C, less than or equal to 0.01% of S, less than or equal to 1.0% of Si, less than or equal to 0.015% of P, 18.0-20.0% of Cr, 1.5-2.5% of Ni, 0.5-1.5% of Mo, 0.5-2.0% of Cu, 0.15-0.25% of N, 0.001-0.01% of B, 0.005-0.20% of rare earth element Ce or Y and the of balance iron. The traditional and conventional smelting process is adopted and the adding method of intermediate alloy sealed with the pure iron pipe is adopted when materials are fed, namely Fe-Ce intermediate alloy or Fe-Y intermediate alloy is prepared in advance, comprehensive dosing and melting is performed, then casting moulding is performed, and certain solution-aging treatment is performed to finally prepare the nitrogen-containing economical antibacterial duplex stainless steel. The antibacterial duplex stainless steel has low cost and good corrosion resistance and bactericidal property.




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Patent Citations (4)

    Publication numberPublication dateAssigneeTitle
    CN-101215674-AJuly 09, 2008上海大学经济型双相不锈钢合金材料及其制备方法
    CN-101215675-AJuly 09, 2008上海大学Resource-saving diphase stainless steel alloy material and preparation method thereof
    CN-1970815-AMay 30, 2007上海大学Rare earth-containing high-nitrogen ultralow-nickel super-duplex stainless steel alloy materials and method for preparing same
    JP-H0741906-AFebruary 10, 1995Nippon Yakin Kogyo Co Ltd, 日本冶金工業株式会社Superplastic two-phase stainless steel

NO-Patent Citations (0)


Cited By (3)

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    CN-102994903-AMarch 27, 2013上海大学Duplex stainless steel with paradoxical phase proportion change and preparation method thereof
    CN-103014525-AApril 03, 2013上海大学一种高硅的双相不锈钢及其制备方法
    CN-106337105-AJanuary 18, 2017中国科学院金属研究所Heat treatment method for antibacterial double-phase stainless steel material