| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a titanium plate which displays excellent formability without lowering the strength, a method for producing the titanium plate, and a method for manufacturing a heat-exchanging plate for plate-type heat-exchanger. <P>SOLUTION: In the titanium plate composed of the pure-titanium for industry, containing crystal grain structure of α-phase (HCP-structure), the titanium plate is characterized in that coarse crystal grains having 4 times or more of the average grain diameter of the crystal grain, are contained in the proportion of ≥0.5 pieces to the 100 pieces of the crystal grains. <P>COPYRIGHT: (C)2013,JPO&INPIT |
