Kobe Steel, Ltd.

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)

Satoshi Yoshida

Shinji Sakashita

Shimpei Kimura

Akihiko Tatsumi

Takahiro Ozawa

A core material for an aluminum alloy clad material contains Si in a content of 0.3% to 1.5% (hereinafter '%' means 'percent by mass'), Mn in a content of 0.3% to 2.0%, Cu in a content of 0.3% to 1.5%, Ti in a content of 0.01% to 0.5%, and B in a content of 0.001% to 0.1%, with the remainder including Al and inevitable impurities. The core material and an aluminum alloy clad material using the same ensure sufficient corrosion resistance and give a product having an extended life.

Aluminum alloy clad member adopted to heat exchanger, and core material for the same

Disclosed is an aluminum alloy clad material which includes a core material; a sacrificial anode material on one surface of the core material; and a filler material on the other surface of the core material and composed of an Al&#x2014;Si alloy, in which the core material contains 0.3 to 2.0 percent by mass of Mn, 0.15 to 1.6 percent by mass of Si, 0.1 to 1.0 percent by mass of Cu, and 0.1 to 1.0 percent by mass of Mg, with the remainder including Al and inevitable impurities, the sacrificial anode material contains 7.0 to 12.0 percent by mass of Zn, 0.3 to 1.8 percent by mass of Mn, and 0.3 to 1.2 percent by mass of Si, with the remainder including Al and inevitable impurities, and has a thickness of 10 to 30 &#x3bc;m. The sacrificial anode material shows resistance to both local corrosion and general corrosion.

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Kobe, Japan

Satoshi Yoshida