High-manganses low-nickel nanometer precipitated phase austenite antibacterial stainless steel

The invention discloses high manganese and low nickel nanometer precipitated phase austenite antimicrobial stainless steel. According to the weight percentage, the high manganese and low nickel nanometer precipitated phase austenite antimicrobial stainless steel comprises the following chemical component: C is lower than or equal to 0.2 percent, Si is lower than or equal to 3 percent, Mn is lower than or equal to 8 to 18 percent, Cr is 10 to 30 percent, Ni: 0.5 to 6 percent, Zn is lower than or equal to 1 percent, N: is lower than or equal to 0.45 percent, and the residues are Fe and unavoidable foreign substances, and the nanometer level precipitated phases epsilon-Cu are uniformly diffused inside the matrix, the size is between 30 nm and 80 nm, the distance between the two precipitated phases is 95 to 100 nm, thereby, the antimicrobial performance of the high manganese and low nickel stainless steel is provided. The high manganese and low nickel nanometer precipitated phase austenite antimicrobial stainless steel has the advantages that the antimicrobial performance is long lasting, the antimicrobial range is wide, the mechanical property is good, and the cost is low.