Ferritic stainless steel having improved surface characteristics and method for manufacturing same
AssigneePosco
InventorsJunghyun Kong, Jin-suk Kim, Manjin Ha, Hyunwoong Min, Hanhyuk Go, Mun-soo Lee
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AssigneePosco
InventorsJunghyun Kong, Jin-suk Kim, Manjin Ha, Hyunwoong Min, Hanhyuk Go, Mun-soo Lee
Estimating the term…
Disclosed are a ferrite-based stainless steel having improved surface characteristics and a method for manufacturing same. The ferrite-based stainless steel according to the present invention includes, in percent by weight (wt %), 0.001 to 0.05% of C, 0.001 to 0.05% of N, 0.1 to 1.0% of Si, 0.1 to 1.0% of Mn, 12.0 to 22.0% of Cr, 0.01 to 1.0% of Ti, 0.01 to 1.0% of Nb, and the remainder of Fe and unavoidable impurities, wherein micro flaws having a length of 100 μm or more are distributed at a density of 5 pieces/mm2 or less.
A ferrite-based stainless steel having improved surface characteristics comprising, in percent by weight (wt %), 0.001 to 0.05% of C, 0.001 to 0.05% of N, 0.1 to 1.0% of Si, 0.1 to 1.0% of Mn, 12.0 to 22.0% of Cr, 0.01 to 1.0% of Ti, 0.01 to 1.0% of Nb, and the remainder of Fe and unavoidable impurities,
A method for manufacturing a ferrite-based stainless steel having improved surface characteristics, the method comprising:
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