What Are The Advantages Of Titanium Tube?

Titanium pipe is a new type of metal material, which has completely replaced the traditional iron pipe and steel pipe in some aspects. So, what makes it quickly replace the traditional tube? Let's take a look.

Advantages of titanium tube:

1. Titanium tube has high specific strength. The density of titanium alloy is generally about 4.5g/cm3, which is only 60% of that of steel. The strength of pure titanium is close to that of ordinary steel. Some high-strength titanium alloys exceed the strength of many alloy structural steels. Therefore, the specific strength (strength / density) of titanium alloy is much higher than that of other metal structural materials. Parts and components with high unit strength, good rigidity and light weight can be made. At present, titanium alloy is used in aircraft engine components, skeleton, skin, fasteners and landing gear.

High strength titanium heat pipe. The service temperature is several Baidu higher than that of aluminum alloy. It can still maintain the required strength at medium temperature and can work for a long time at 450 ~ 500 ℃. These two kinds of titanium alloys still have high specific strength in the range of 150 ℃ ~ 500 ℃, while the specific strength of aluminum alloy decreases significantly at 150 ℃. The working temperature of titanium alloy can reach 500 ℃, while that of aluminum alloy is below 200 ℃.

3. Titanium tube has good corrosion resistance. Titanium alloy works in humid atmosphere and seawater, and its corrosion resistance is much better than that of stainless steel; It has strong resistance to pitting corrosion, acid corrosion and stress corrosion; It has excellent corrosion resistance to alkali, chloride, chlorine organic products, nitric acid, sulfuric acid, etc. However, titanium has poor corrosion resistance to reducing oxygen and chromium salt medium.

4. Titanium tube has good low temperature performance. Titanium alloy can still maintain its mechanical properties at low and ultra-low temperatures. Titanium alloys with good low temperature performance and very low interstitial elements, such as TA7, can maintain a certain plasticity at - 253 ℃. Therefore, titanium alloy is also an important low temperature structural material.

5. Titanium tube has high chemical activity. Titanium has great chemical activity and has strong chemical reaction with O, N, h, Co, CO2, water vapor and ammonia in the atmosphere. When the carbon content is more than 0.2%, hard tic will be formed in titanium alloy; When the temperature is high, tin hard surface will also be formed by interaction with n; Above 600 ℃, titanium absorbs oxygen to form a hardened layer with high hardness; With the increase of hydrogen content, embrittlement layer will also be formed. Titanium also has great chemical affinity and is easy to adhere to the friction surface.

6. Titanium tube has small thermal conductivity and elastic modulus. Titanium has small thermal conductivity and elastic modulus. The elastic modulus of titanium alloy is about 1 / 2 of that of steel, so it has poor rigidity and is easy to deform. It is not suitable to make slender rods and thin-walled parts. During cutting, the resilience of the machined surface is very large, about 2 ~ 3 times that of stainless steel, resulting in severe friction, adhesion and bonding wear on the back surface of the tool.