Titanium tubes are lightweight, high strength and have excellent mechanical properties, which are widely used in heat exchange equipment, such as tube heat exchangers, serpentine tube heat exchangers, condensers, evaporators and transportation piping. At present, many nuclear power industry to titanium tube for its unit standard tube. Titanium tubes are made by extrusion process, and welded titanium tubes are made by curling and welding of plates. Generally seamless titanium tubes have smaller wall thickness and smaller caliber.
Titanium tube technical requirements:
1. The permissible deviation of the outer diameter of the pipe is in accordance with the provisions of Table I.
2. The length of the pipe should be in accordance with the provisions of Table II.
3. The allowable deviation of the wall thickness of the pipe should not exceed its nominal wall thickness of ± 12.5%, the allowable deviation of the wall thickness of the pipe is not suitable for titanium welded pipe at the weld.
4. The chemical composition of titanium and titanium alloy pipe in accordance with the provisions of GB/T3620.1, the demand side re-inspection, the permissible deviation of the chemical composition in accordance with the provisions of GB/t3620.2.
5. Pipe sizing or times the length of the range, the permissible deviation of the sizing length of ± 10mm, times the length of the pipe should also be counted in the pipe cut off when the cut off is the amount of incision, each incision amount should be 5mm.
Titanium alloy has high strength and low density, good mechanical properties, toughness and corrosion resistance is very good. In addition, titanium alloy process performance is poor, cutting and processing difficulties, in thermal processing, very easy to absorb impurities such as hydrogen, oxygen, nitrogen and carbon. There is also poor wear resistance and complex production process.
Titanium tube use breakdown
The quality of titanium tube is very light, so it is very suitable for making airplane parts, etc. Its strength is very high and its performance is also superior. Therefore, titanium tubes are used in many industries, such as nuclear power industry, coil heat exchanger and so on. Below to tell you about the use of titanium tubing.
The use of titanium tube:
Titanium alloy has high strength and low density, good mechanical properties, toughness and corrosion resistance is very good. In addition, the process performance of titanium alloy is poor, cutting and processing difficulties, in the thermal processing, very easy to absorb impurities such as hydrogen, oxygen, nitrogen and carbon. There is also poor abrasion resistance, the production process is complex. The industrialized production of titanium was started in 1948. The need for the development of the aviation industry, so that the titanium industry to an average annual growth rate of about 8% development. At present, the world's annual output of titanium alloy processing materials has reached more than 40,000 tons, titanium nearly 30 kinds. The most widely used titanium alloy is Ti-6Al-4V (TC4), Ti-5Al-2.5Sn (TA7) and industrial pure titanium (TA1, TA2 and TA3).
Titanium alloys are mainly used in the production of aircraft engine compressor components, followed by rockets, missiles and high-speed aircraft structural components. in the mid-1960s, titanium and its alloys have been used in general industrial applications for the production of electrodes for the electrolysis industry, condensers for power stations, heaters for petroleum refineries and seawater desalination as well as for environmental pollution control equipment. Titanium and its alloys have become a corrosion-resistant structural material. It is also used to produce hydrogen storage materials and shape memory alloys.
