Ultrathin stainless steel foil
AssigneeNippon Steel Corporation
InventorsIzumi Muto, Michio Nakata, Yoshihiro Fujii, Kenji Hirashima, Shuji Nagasaki, Jun Nakatsuka, Tsuyoshi Nakano
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Abstract
An ultrathin stainless steel foil of a thickness of 25 μm or less whose average number of inclusions of a major diameter of 5 μm or greater per 1 mm2 in sections along the rolling direction is 3 or less. The ultrathin stainless steel foil is not readily susceptible to the local tunnel-like corrosions (voids) that have occasionally occurred, during etching, together with cracking in the rolling direction from the edges.
Claims5
An ultrathin stainless steel foil of a thickness of 25 μm or less whose average number of inclusions of a major diameter of 5 μm or greater per 1 mm2 in sections along the rolling direction is 3 or less.
Dependencies are inferred from the claim text.