Nippon Steel Sumitomo Metal Corporation

Sumitomo Metal Industries, Inc.

Keisuke Nagashima

Satoshi Matsumoto

Takashi Maeda

Kouichi Kuroda

Nozomu Ariyasu

There is provided a titanium alloy for corrosion-resistant materials, which contains 0.01-0.12% by mass in total of at least one of platinum group elements; at least Si and one of, or both of, Sn and Mn, selected from the group consisting of Al, Cr, Zr, Nb, Si, Sn and Mn, wherein the total content of Al, Cr, Zr, Nb, Si, Sn and Mn is 5% by mass or less; and the residue comprising Ti and impurities.

Titanium alloy for corrosion-resistant materials

A process for making a work piece from a &#x3b2;-type titanium alloy material includes subjecting the &#x3b2;-type titanium alloy material to cold working with controlling the reduction rate thereof to vary the reduction rate depending on a position across a plain direction of the &#x3b2;-type titanium alloy material, and then subjecting the &#x3b2;-type titanium alloy material to an aging treatment.

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Osaka, Japan

Keisuke Nagashima