The present invention relates to austenitic stainless steel with excellent low-cycle fatigue property. According to an embodiment of the present invention, the austenitic stainless steel with excellent low-cycle fatigue life comprises 0.2 wt% or lower of C, 0.2 wt% or lower of N, 0.1-4.5 wt% of Si, 5-11 wt% of Mn, 15-20 wt% of Cr, 6-11 wt% of Ni, 2.5 wt% or lower of Mo, 3.5 wt% or lower of Cu, and the remainder consisting of Fe and inevitable impurities, and satisfies the following formula (1), wherein (1) is 20 = (337*C + 78*N - 1.7*Si + 0.2*Mn + 1.7*Cr + 3.3*Ni + 17.4*Mo + 0.5*Cu - 9.934) = 35, and here, C, N, Si, Mn, Cr, Ni, Mo, and Cu mean the content (wt%) of the respective element.
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机译：本发明涉及具有优异的低周疲劳特性的奥氏体系不锈钢。根据本发明的实施方式，具有优异的低周疲劳寿命的奥氏体系不锈钢包含0.2重量％以下的C，0.2重量％以下的N，0.1〜4.5重量％的Si，5〜11重量％。 Mn，15-20重量％的Cr，Ni的6-11重量％，Mo的2.5重量％以下，Cu的3.5重量％以下，其余由Fe和不可避免的杂质组成，并且满足下式（1），其中（1）为20 <=（337 * C + 78 * N-1.7 * Si + 0.2 * Mn + 1.7 * Cr + 3.3 * Ni + 17.4 * Mo + 0.5 * Cu-9.934）<= 35 ，在此，C，N，Si，Mn，Cr，Ni，Mo和Cu表示各个元素的含量（wt％）。
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