Sumitomo Metal Industries, Inc.

Mitsubishi Jukogyo Kabushiki Kaisha

Daicel Chemical Industries, Ltd.

Teruo Yukitoshi

Takashi Daikoku

Yoshinobu Ohya

Takao Hino

Teishiro Oda

Kazuhiko Nishida

There is provided a spot-weldable bonded clad metal plate wherein the metal sheets are 0.05-1.0 mm thick and at least 0.4 mm thick, respectively, the adhesive layer has a thickness of 15-60 microns and the adhesive layer contains 10-100 g/m.sup.2 of metallic powder having a particle diameter corresponding to 0.5-1.5 times the thickness of the adhesive layer. The metallic powder is not necessarily entirely metallic and, for example, glass beads having surfaces coated with a metal can also be used. As the adhesive, a polyamide resin adhesive, particularly, a hot melt type polyamide resin adhesive is preferred. The bonded clad metal plate shows excellent adhesion strength, and in spite of such thin metal sheets, does not blister when spot-welded.

Spot-weldable bonded clad metal plate

High chromium steel, for use at high temperature, of a mixed structure containing ferrite and 0.02-0.09% C, less than 1.0% Si, 0.1-2.0% Mn, 7.0-13.0% chromium, 1.2-3.0% Mo, and the rest being iron and the usual impurities, or further adding aluminum in an amount less than 0.1% to said composition, or further adding 0.001-0.1% boron and less than 0.1% Ti necessary to cause the boron to act effectively, said steel being heated at temperatures lower than about 1050.degree. C. to prevent the oxidation of the steel.

High chromium steel of mixed structure containing ferrite for high

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Fujiidera, Japan

Teruo Yukitoshi