characteristics of titanium;
small density, high strength, than strength: the density of titanium is 4.51g/cm3, 57% of steel, just a little more than half of the steel, titanium is less than twice the weight of aluminum, strength than aluminum three times greater. When comparing different materials with strength (i.e. strength/density ratio), the ratio strength of titanium alloy is larger than that of commonly used industrial alloys. See Table 2-1, titanium alloys are 3.5 times stronger than stainless steel, aluminum alloys are 1.3 times stronger, magnesium alloys are 1.7 times stronger, so they are essential structural materials for the aerospace industry.






