Titanium and titanium alloy

• Overview

  Titanium is a silver-white transition metal with a melting point of 1668℃. It is characterized by light weight, high strength, metallic luster and resistance to wet chlorine corrosion. Titanium is metallic and ductile. Titanium has high corrosion resistance to chloride, sulfide and ammonia. The corrosion resistance of titanium in seawater is higher than that of aluminum alloy, stainless steel and nickel-based alloy. Titanium water impact resistance is also strong.

• Characteristics

  The main characteristics of titanium are low density, high mechanical strength, plasticity, easy processing, but low shrinkage strength (that is, the strength generated during shrinkage).

  Titanium has strong damping resistance.

  The new titanium alloy has good heat resistance and can be used for a long time at 600℃ or higher temperature.

  Titanium alloy has good low temperature resistance.

  Titanium is an important alloying element in steel and alloys, but its specific strength is the first among metals.

  Titanium has poor thermal and electrical conductivity, approximately or slightly lower than stainless steel.

  Titanium has superconductivity, and the critical temperature of pure titanium is 0.38-0.4K.

  Pure titanium is a non-magnetic metal, it is difficult to be magnetized in a large magnetic field, non-toxic and has a good compatibility with human tissue and blood, so it is used by the medical community.

  The tensile strength of titanium is close to its yield strength, indicating that its yield strength ratio (tensile strength/yield strength) is high, indicating the plastic deformation of titanium metal during forming.

  The ratio between yield limit and elastic modulus of titanium is large, which makes the springback ability of titanium forming is large.

  Titanium has good corrosion resistance and is not affected by atmosphere and sea water.

  Titanium has a lower thermal conductivity than carbon steel and copper.

  The elastic modulus of titanium is 106.4GPa at room temperature, which is 57% of that of steel.

  Titanium is a chemically active metal that reacts with many elements and compounds at higher temperatures.

• Application of Titanium

  Titanium and titanium alloys are widely used in the aviation industry and are known as "space metals".

  Titanium has been widely used in shipbuilding industry, chemical industry, manufacturing machinery parts, telecommunication equipment, hard alloy and so on.

  Titanium alloy has good heat resistance strength, low temperature toughness and fracture toughness, so it is used as aircraft engine parts and rocket, missile structural parts.

  Titanium alloys can also be used as fuel and oxidizer storage tanks and high-pressure vessels.

  Titanium is mainly used in the petroleum industry as vessels, reactors, heat exchangers, distillation towers, pipelines, pumps and valves.

  Titanium is used as an electrode and as a condenser in power stations and as an environmental pollution control device.

  Ti - Ni shape memory alloy has been widely used in instrumentation. In medicine, titanium is used for artificial bones and various instruments.

  Titanium is also a deoxidizer in steelmaking and a component of stainless steel and alloy steel.

• Application of Titanium Tubes

  Titanium tubes are commonly used in heat exchange equipment, such as tubular heat exchangers, coil heat exchangers, serpentine tube heat exchangers, condensers, evaporators and conveying pipelines. Many in the nuclear power industry use titanium tubes as standard for their units.