Nippon Steel Corporation

Tomonari Oga

Seizun Higuchi

Hirohumi Nakano

Masao Ikeda

Yashichi Oyagi

Seijun Higuchi

Kenichi Asakawa

Toshinori Mizuguchi

Fumio Yamamoto

Toshinori Katayama

Senkichi Tsujimura

The Sn based multilayer coated steel strip for container-use is improved by the provision of a novel underyling coating of ternary Fe-Ni-P alloy which, mainly because of the Ni component, ensures a uniform deposition of the Sn layer, and mainly because of the P and Fe contents ensure a satisfactory remaining amount of free Sn for improving the weldability. The steel strip has a thin Sn plated layer and a chromate coating layer on the underlying coating.

Method for producing an Sn-based multilayer coated steel strip having

Coated steel sheet of high corrosion resistance comprises a sheet of steel containing not more than 0.1% by weight of carbon, 0.005 to 0.08% by weight of soluble aluminum and 0.2 to 20% by weight of chromium, the balance being iron and unavoidable impurities. The steel carries a nickel or nickel alloy layer formed on at least one surface thereof and having a thickness of 0.001 to 1.5 microns and a layer of tin formed on the nickel or nickel alloy layer and having a thickness of at least 0.05 micron. A method of producing it is also disclosed.

Tinned steel sheet having a high degree of corrosion resistance and a

The Sn based multilayer coated steel strip for container-use is improved by the provision of a novel underlying coating of ternary Fe-Ni-P alloy which, mainly because of the Ni component, ensures a uniform deposition of the Sn layer, and mainly because of the P and Fe contents ensure a satisfactory remaining amount of free Sn for improving the weldability. The steel strip has a thin Sn plated layer and a chromate coating layer on the underlying coating.

Sn-based multilayer coated steel strip having improved corrosion

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Kitakyushu, Japan

Tomonari Oga