Grade 9 titanium is also know as Ti-3AL-2.4V or simply Ti-3-2.5. Grade 9 is grouped in with the commercially pure grades because it is cold rollable. Grade 9 strengths fall between Grade 4 and Grade 5. It has excellent corrosion resistance and is used in aerospace and industrial applications. Grade 9 can be used at higher temperatures than Grades 1 through 4.