| 摘要 |
PROBLEM TO BE SOLVED: To provide a titanium alloy material having higher strength level than the existing titanium alloy materials and capable of taking cold rolling (coil rolling) preferably as well as having processability without requiring any expensive alloy elements.SOLUTION: A titanium alloy material having high intensity and excellent cold rolling property satisfies Al equivalent represented by (Al+10O (oxygen)) of 3.5 to 7.2 mass%, Al of 1.0 mass% to 4.5 mass%, O of 0.60 mass% or less (not including 0 mass%), and Fe equivalent represented by (Fe+0.5Cr+0.5 Ni+0.67Co+0.67Mn) of 0.8 mass% to 2.0 mass% and contains one or more atoms selected from a group consisting of Cu:0.4 to 3.0 mass% and Sn:0.4 to 10 mass% and with the remainder being Ti with inevitable impurities. |
