Zirconium tube is a high-strength, corrosion-resistant, high-temperature-resistant metal tube made of high-purity zirconium metal. Zirconium has good chemical stability, mechanical properties, and thermal properties, and can be used in chemical reactors, ships, nuclear power plants, and other fields under high temperature and high-pressure environments. Its coefficient of thermal expansion is similar to that of stainless steel, allowing it to fit and coordinate with the surrounding stainless steel structure when used as tubing in nuclear reactor applications. Zirconium pipe is also widely used in medicine and dentistry to make medical devices such as oral implants and artificial bones.
1. The physical and chemical properties of zirconium pipe are as follows
1) Physical properties
- Density: 6.52 g/cm³
- Specific heat capacity: 25.36 J/(mol K)
- Melting point: 1855 °C
- Conductivity: 40.4 × 10⁶ S/m
- Thermal conductivity: 22.7 W/(m K)
- Coefficient of linear expansion: 5.7 × 10⁻⁶/K
2) Chemical properties
Zirconium tube has high corrosion resistance and good corrosion resistance to oxidizing gas, water, acid, alkali, etc.
It also has high corrosion resistance to salts, nitric acid, acetic acid, organic acids, etc.
A layer of oxide film is naturally formed on the surface of zirconium metal tube, which makes it resistant to corrosion to a certain extent.
Zirconium pipes are sensitive to hydrogen and dangerous hydrogen embrittlement occurs at temperatures above 500°C. So be careful when using it.
|
Zr702 |
Zr+Hf |
Hf |
Fe+Cr |
H |
C |
O |
|
Component % |
(Min) |
(Max) |
||||
|
99.2 |
4.5 |
0.20 |
0.005 |
0.05 |
0.16 |
|
| Chemical Composition % | ||||||
In general, Zirconium pipe has excellent corrosion resistance and high physical properties, and is a commonly used material.
2. Zirconium pipe has the following characteristics and advantages
1) Excellent high-temperature performance: it can withstand temperatures up to 1800°C and maintain its shape and properties.
2) Strong corrosion resistance: It has very high corrosion resistance and can be used in harsh environments such as strong acid, strong alkali, high salt concentration, and high pressure.
3) Good processing performance: it is easy to process into various shapes, and can be customized according to needs, such as semicircle, flat tube, etc.
4) Low Density and Light Weight: It is less dense and lighter than steel and copper, making it ideal for use in applications where weight savings are required.
5) Good biocompatibility: it is not harmful to the human body and can be used to make medical devices, artificial joints, etc.
6) Good wear resistance: It has good wear resistance, which can reduce the friction of material fluid and prolong the service life of the equipment.
To sum up, zirconium tube has a wide range of applications in many fields, such as the chemical industry, medical treatment, aviation, and so on.
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4. Zirconium metal tube has a wide range of applications in the following fields
1) Nuclear industry: It can be used to manufacture fuel rods in nuclear reactors, reactor pressure tubes and cooling systems in nuclear power plants, etc.
2) Chemical industry: It has good corrosion resistance and can be used in the manufacture of equipment and pipelines that require acid resistance, alkali resistance, salt corrosion resistance, and high temperature in the chemical industry, such as the transportation of high-concentration corrosive media such as nitric acid, hydrofluoric acid, and hydrochloric acid. pipeline.
3) Medical field: It can be used to manufacture disposable surgical suits for clinical operations, repair zygomatic incisions, strengthen important supports and tissues, etc.
4) Aerospace field: It can be used in the manufacture of engine components, aerospace generators, and conductive systems, as well as pumps and valves.
5) Electronic industry: Zirconium tubes can be used to manufacture semiconductor materials, high-voltage ceramic capacitors, high-energy gas discharge tubes, etc.
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