Advantages of Titanium Tubes for industry

Titanium tubes are a new type of metal material that, in some aspects, have completely replaced traditional iron and steel pipes. What makes titanium tubes capable of quickly replacing traditional pipes? Let's explore the advantages of titanium tubes:

1. High Specific Strength: Titanium alloys generally have a density of about 4.5 g/cm³, which is only 60% of that of steel. Pure titanium's strength is close to that of ordinary steel, while some high-strength titanium alloys exceed the strength of many alloy structural steels. Therefore, the specific strength (strength/density) of titanium alloys is much greater than that of other metal structural materials. This allows for the production of components and parts that are strong, rigid, and lightweight. Currently, titanium alloys are used in aircraft engine components, frames, skins, fasteners, and landing gears.

2. High Thermal Strength: Titanium tubes can be used at temperatures several hundred degrees higher than aluminum alloys. They can maintain their required strength at medium temperatures and can work for a long time at 450-500°C. In the range of 150-500°C, the specific strength of titanium alloys remains high, while the specific strength of aluminum alloys decreases significantly at 150°C. Titanium alloys can work at temperatures up to 500°C, whereas aluminum alloys can only work below 200°C.

3. Excellent Corrosion Resistance: Titanium alloys exhibit superior corrosion resistance in humid atmospheres and seawater, far surpassing that of stainless steel. They are particularly resistant to pitting, acid corrosion, and stress corrosion. Titanium alloys have excellent resistance to corrosion from alkalis, chlorides, chlorine-containing organic substances, nitric acid, and sulfuric acid. However, titanium has poor corrosion resistance in reducing oxygen and chromium salt media.

4. Good Low-Temperature Performance: Titanium alloys maintain their mechanical properties at low and ultra-low temperatures. With excellent low-temperature performance, titanium alloys with extremely low interstitial elements, such as TA7, can retain some ductility at -253°C. Therefore, titanium alloys are also important materials for low-temperature structures.

5. High Chemical Activity: Titanium has high chemical activity and reacts strongly with atmospheric oxygen, nitrogen, hydrogen, carbon monoxide, carbon dioxide, water vapor, and ammonia. When the carbon content exceeds 0.2%, hard TiC forms in titanium alloys. At higher temperatures, TiN forms with nitrogen, creating a hard surface layer. Above 600°C, titanium absorbs oxygen, forming a very hard oxide layer. An increase in hydrogen content can also lead to the formation of a brittle layer. The high chemical affinity of titanium causes it to adhere easily to friction surfaces.

6. Low Thermal Conductivity and Elastic Modulus: Titanium has low thermal conductivity and a low elastic modulus. The elastic modulus of titanium alloys is about half that of steel, resulting in poor rigidity and easy deformation. This makes them unsuitable for making slender rods and thin-walled parts. During machining, the springback of the machined surface is significant, about 2-3 times that of stainless steel, causing severe friction, adhesion, and wear on the cutting tools' back surfaces.
   

   

In summary, Titanium Tube or Titanium Pipe offer numerous advantages such as high specific strength, excellent thermal and corrosion resistance, good low-temperature performance, and high chemical activity. These properties make them an ideal choice for various demanding applications, replacing traditional iron and steel pipes in many areas.

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