The present invention relates to Cr-Mn-based stainless steel consisting of 0.25 wt% or less of carbon (C), 0.5 wt% or less of nitrogen (N), 1.0 to 5.0 wt% of silicon (Si), 8.0 to 16.0 wt% of manganese (Mn), 0.045 wt% or less of phosphorus (P), 0.03 wt% or less of sulfur (S), 16.0 to 19.0 wt% of chromium (Cr), 1.0 wt% or less of nickel (Ni), and remaining amount of iron and unavoidable impurities, wherein contents of Si and Mn meet an inequality, 0.13 = Si/Mn = 0.63.
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机译：本发明涉及一种Cr-Mn基不锈钢，它由0.25wt％或更少的碳（C），0.5wt％或更少的氮（N），1.0-5.0wt％的硅（Si），8.0-16.0％组成。锰（Mn）的重量百分比，磷（P）的重量百分比为0.045重量％或更少，硫（S）的重量百分比为0.03重量％或更少，铬（Cr）的重量百分比为16.0至19.0％，镍（Ni ），铁和不可避免的杂质的残留量，其中Si和Mn的含量满足不等式0.13 <= Si / Mn <= 0.63。
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