Medical high-nitrogen nickel-free austenitic stainless steel material and production method thereof

The invention relates to a medical high-nitrogen nickel-free austenitic stainless steel material and a production method thereof. The material is a single-phase austenite structure and comprises the following components by weight percent: 15-18% of Cr, 10-16% of Mn, 1.5-2.5% of Mo, 0.4-0.7% of N, 0.02-0.08% of RE, less than or equal to 0.06% of unavoidable impurities and the balance of Fe. The material is free of toxic nickel, has good cytotoxicity and pyrogenic testing performances, excellent mechanical performance, higher abrasion resistance and good corrosion resistance, especially spot corrosion resistance and intergranular corrosion resistance.