Application:

1. Oil and gas industry: used to transport oil, natural gas and related products, capable of resisting corrosion and adapting to harsh working conditions.

2. Chemical industry: can transport a variety of corrosive chemicals and media.

3. Food and beverage industry: Due to its hygienic and corrosion-resistant properties, it is often used in piping systems for food processing, beverage production, and other processes.

4. Pharmaceutical industry: meets strict hygiene standards and can be used for fluid delivery in the pharmaceutical process.

5. Water supply and drainage system: used for urban water supply and drainage pipes.

6. Energy industry: For example, in facilities such as nuclear power plants, it is used to transport various media.

7. Marine engineering: can resist the corrosion of seawater, suitable for offshore platforms, ships, and other piping systems.

8. Paper industry: conveying chemical solutions, etc.

9. HVAC system: as a transmission pipe for hot water, steam, etc.

10. Electronics and semiconductor industries: used in some production environments with high purity requirements.

11. Automotive manufacturing: used in automotive exhaust systems, cooling systems, etc.

12. Industrial equipment manufacturing: fluid pipes in various mechanical equipment.

Physical and chemical properties:

Physical properties:

1. Density: usually around 7.93g/cm ³, with a relatively high density.

2. Melting point: with a high melting point, the specific value will vary depending on the specific composition of stainless steel.

3. Thermal conductivity: The thermal conductivity is relatively low, making it a good thermal insulation material.

4. Resistivity: High resistivity, with certain resistance characteristics.

5. Strength: It has high strength and can withstand greater pressure and tensile force.

6. Processability: It has good ductility and machinability, and can be made into pipes of different shapes by various processing methods.

7. Appearance: Smooth surface with metallic luster.

Chemical properties:

1. Corrosion resistance: These stainless steels all contain a certain amount of chromium element, which can form a dense chromium oxide protective film on the surface, making it have good corrosion resistance and can resist the erosion of various media. However, the corrosion resistance of different models of stainless steel in specific environments may vary. For example, 316 and 316L stainless steels have better corrosion resistance in environments containing chloride ions; 304L and 316L are low-carbon versions, which can reduce the risk of intergranular corrosion; 2205 and 2507 duplex stainless steels have higher strength and corrosion resistance; 310S stainless steel has excellent high temperature resistance and oxidation resistance.

2. Oxidation resistance: It can still maintain good oxidation resistance in high temperature environments.

3. Stability: Under normal conditions, the chemical properties are relatively stable, making it difficult to chemically react with other substances.

4. Cleanliness: The surface is relatively easy to clean, and it is not easy to breed bacteria and contaminants. It should be noted that although these stainless steels have good performance, corrosion or other chemical reactions may still occur in some extreme environments or specific media. In practical applications, it is necessary to select the appropriate type of stainless steel pipe according to the specific use environment and requirements to ensure its performance and service life. At the same time, the operation during processing and installation will also affect the performance of stainless steel pipes, and the relevant specifications and standards should be followed for operation.