Kawasaki Steel Corporation

Kawsaki Steel Corporation

Haruhiko Ishizuka

Susumu Satoh

Toru Sato

Toshitane Matsukawa

Shun Suhara

Katsumi Kurokawa

Takeshi Yokota

Atsushi Miyazaki

Junichiro Hirasawa

Kazuhide Ishii

Kenji Takao

Masaharu Ikeda

The present invention provides a BA-finished stainless steel product having superior antibacterial properties and corrosion resistance and a method for producing the same. Specifically, after a stainless steel product is subjected to BA treatment, the stainless steel product is immersed in a solution containing Ag ions having a concentration of 0.0001 to 1.0 mol/l so that a BA film contains, in area percentage, 0.0002 to 0.05% of Ag particles and Ag compounds, and further, stainless steel product contains 0.001 to 0.10% by weight of Ag and optionally further contains 0.001 to 0.30% by weight of V.

Stainless steel material with excellent antibacterial property and process for producing the same

A highly corrosion resistant chromium-containing steel has corrosion resistance and oxidation resistance comparable or superior to those of low Cr-stainless steel (Cr content: 11-13% by weight), and excellent intergranular corrosion resistance not attainable in existing chromium containing steels. However, the steel has such a low Cr content that it is not classified as a stainless steel. A preferred composition on a weight % basis, is: C: 0.015% or less, Si: from more than 1.0% to 2.0%, Mn: 0.5% or less, P: 0.05% or less, S: 0.01 or less, Ni: 0.015% or less, provided that sum of the C content and the N content (C&plus;N): 0.020% or less. Ti: from more than 0.30% to 0.50% in which the contents for Cr, Ti, C and N, that is, &lsqb;Cr&rsqb;, &lsqb;Ti&rsqb;, &lsqb;C&rsqb; and &lsqb;N&rsqb; satisfying the following relation: &lsqb;Ti&rsqb;/(&lsqb;C&rsqb;&plus;&lsqb;N&rsqb;)&gE;64&minus;4&times;&lsqb;Cr&rsqb;, balance of Fe and incidental impurities.

Highly corrosion-resistant chromium-containing steel with excellent oxidation resistance and intergranular corrosion resistance

In a method of manufacturing a wide metal thin strip, molten metal is ejected onto the surface of a rotating cooling roll. The nozzle shape permits manufacture of wide metal thin strips having a uniform thickness in the width direction.

Method of manufacturing a wide metal thin strip

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Chiba, Japan

Haruhiko Ishizuka