titanium tubing price
Asean/Thailand
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introduce
Titanium round bar is the atomic number of 22 element in the periodic table, the fourth cycle subgroup elements, namely Ⅳ B flag, this group elements except for the round bar titanium and zirconium and hafnium, their common 3d titanium wire characteristic is high melting point, at room temperature to form stable oxide film on the surface.
Ten properties of titanium round bar
(1) low density, high strength, large specific strength
Titanium is 4.51 g/cm3 density of round bar, 57% of titanium tubing price the steel, titanium round bar less than two times heavier than aluminum, strength is three times bigger than aluminum. Than the strength of the titanium alloy round bar (strength/density ratio) is the largest of commonly used industrial alloy, titanium alloy round bar than intensity is 3.5 times that of stainless steel; 1.3 times of the aluminum alloy; 1.7 times the mass of magnesium alloys, so it is necessary for the aerospace industry structure material.
Titanium round blunt depends on Titanium welding pipe the existence of the oxide film, its corrosion resistance in oxidizing medium is much better than in the reducing medium. Will happen in a reducing medium high corrosion rate. Titanium round bar corrosion in some corrosive medium, such as water, wet chlorine, chlorite and hypochlorite solution, nitric acid, chromic acid, metal chloride, sulfide, organic acids, etc. But in the hydrogen reacts with titanium round bar medium (such as hydrochloric acid and sulfuric acid), titanium round bar usually has a larger corrosion rate. But if add a small amount of oxidant in acid can make titanium form a layer of passivation film on the surface of round bar. So ti6al4v eli the strong sulfuric acid, nitric acid or hydrochloric acid, nitric acid mixture, even in hydrochloric acid containing free chlorine, titanium round bar is corrosion resistant.
Titanium round bar of the protective oxide film is often when metal touching the water, even a small amount of water or water vapor can form. If the titanium round bar exposed to strong oxidizing environment, no water reacts violently rapid oxidation and occurs, often appear even spontaneous combustion. Titanium round bar with fuming nitric acid containing excessive nitrogen oxide and titanium round bar with dry chlorine reaction happened on this kind of phenomenon. So to prevent this kind of reaction, there must be a certain amount of moisture.
(2) good thermal performance titanium round bar usually aluminum at 150 ℃, stainless steel at 310 ℃ or lost its original performance, round bar and titanium alloy at 500 ℃ or so remained good mechanical properties. When the plane speed reached 2.7 times the speed of sound, the plane structure surface temperature of 230 ℃, aluminum ti6al4v alloy and magnesium alloy has been can't use, round bar and titanium alloy can meet the requirements. Titanium round bar heat resistant performance is good, it is used for aeroengine compressor disk and blade, and the plane after the fuselage skin. |
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