The invention relates to a nickel-free austenitic stainless steel which comprises, in mass percent: chromium in amounts of 10Cr21%; manganese in amounts of 10Mn20%; molybdenum in amounts of 0Mo2.5%; copper in amounts of 0.5=Cu4%; carbon in amounts of 0.15C1%; nitrogen in amounts of 0N=1%; nickel in amounts of 0=Ni0.5%, and the remainder formed by iron and any impurities from the melt. The steel comprises, in mass percent, carbon in amounts of 0.25C1% when the nickel-free austenitic stainless steel comprises, in mass percent, manganese in amounts of 15=Mn20%.
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