Titanium tube has small density, the ratio of strength (strength / weight) is high, the density of titanium metal is 4.51g/cm3, which is higher than aluminum and lower than steel, copper, nickel, but the ratio of strength is ranked first in the metal, which is 3 times of stainless steel and 1.3 times of aluminum alloy.
Good corrosion resistance: Titanium is a very active metal, and its equilibrium potential is very low, the thermodynamic corrosion tendency is large in the medium. But in fact, titanium is very stable in many media, for example, titanium is corrosion-resistant in the oxidation, neutral and weak reduction and other media. This is because titanium has great affinity with oxygen, in the air or oxygen containing medium, the surface of titanium is easy to generate a layer of dense, strong adhesion, inert large oxide film to prevent the titanium substrate from being corroded. Even with the mechanical wear, it will soon heal itself or regenerate. This shows that titanium is a kind of metal with strong tendency to passivation. The oxide film of titanium has always maintained this characteristic under the temperature of 315 degrees Celsius.
Good heat transfer performance: Although the coefficient of thermal conductivity of titanium metal is lower than that of carbon steel and copper, the thickness of the wall can be greatly reduced because of its excellent corrosion resistance of titanium. And the heat transfer method of the surface and steam is drip condensation, which reduce the heat group, titanium surface does not scale, which can reduce the thermal resistance, so that the heat transfer performance of titanium is significantly improved.
Good heat resistance: A new type of titanium alloy can be used for a long time at a temperature of 600 degrees. Titanium alloy, as the representative of the low temperature titanium alloy, its strength decreases with the temperature increase, but the plastic change is not big.
