Since the 1930s, with the rapid development of continuous rolling production of high-quality strip steel and the advancement of welding and inspection technology, the quality of welds has continued to improve, and the varieties and specifications of stainless welded steel pipes and steel pipes have increased day by day, and are used in more and more fields, especially It has replaced seamless steel pipes in heat exchange equipment pipes, decorative pipes, medium and low pressure fluid pipes, etc.Stainless welded steel pipe is a pipe made of stainless steel plate as raw material and processed through a series of production processes. The production process of welded steel pipes is simple, the production efficiency is high, there are many varieties and specifications, and the equipment investment is small, but the general strength is lower than that of seamless steel pipes. Compared with ordinary black steel pipes, galvanized pipes, aluminum-plastic pipes, etc., stainless steel pipes have a smooth and smooth surface without defects such as iron oxide scales and holes. They have excellent corrosion resistance, high temperature resistance, non-toxicity, and pressure resistance.
Stainless welded steel pipes are widely used. They are mainly used to transport fluids and gases in many fields such as petroleum, chemical industry, medicine, fertilizer, food, shipbuilding, textile, national defense and so on. Let's discuss the applications of stainless steel welded pipes one by one.
Analysis of application areas of stainless welded steel pipes
The petroleum industry is an important application field for stainless steel welded pipes.In the petroleum industry, the application of stainless welded steel pipes is mainly to transport oil and natural gas, because stainless welded steel pipes can resist the erosion of corrosive substances such as high temperature, high pressure and strong acid, and show excellent performance in such extreme environments.
The chemical industry is also an important application field for stainless steel welded pipes. Since chemicals are usually corrosive substances, the corrosion resistance of stainless steel welded pipes has been widely used in the chemical industry. At the same time, during the manufacturing process, the wastewater generated by stainless steel welded pipes can also be transported and treated through stainless steel welded pipes.
The pharmaceutical and food industries are common application areas for stainless steel welded pipes. In these industries, stainless steel welded pipes use low carbon steel (tungsten) such as 316L, (cobalt) titanium steel and other high-performance stainless steel to ensure the quality and safety performance of the product. As a pipeline for transporting pharmaceutical raw materials and food liquids, stainless steel welded pipes have excellent density, corrosion resistance, rigidity and toughness.
In the national defense industry, stainless steel welded pipes are widely used in the production and maintenance of various missiles, spacecrafts, satellites and related equipment and pipeline systems.
Market demand for stainless steel welded pipes
With the rapid development of economic construction, the consumption of stainless steel continues to increase, among which the demand for stainless steel pipes is also expanding day by day, and the market prospects are promising. The market demand for stainless steel seamless pipes is reflected in basic industries, such as petroleum, chemical industry, power generation, etc. The demand accounts for one-third of the total consumption of stainless steel seamless pipes, as well as in the automobile, shipbuilding, construction and environmental protection industries. Greater demand. Stainless steel welded pipes are currently mainly used in heat exchanger pipes, fluid pipes, pressure pipes, mechanical structure pipes, urban landscape, and other industries. The annual consumption in China is about 700,000 tons. The demand for industrial stainless steel welded pipes is relatively high, and the production technology is mature. At present, the annual volume of industrial stainless steel welded pipes in China is about 150,000 tons, and part of it still needs to be imported.
Conclusion
In short, stainless steel welded pipe is a pipe product with excellent performance and wide application, and its application scenarios are very diversified. From the petrochemical industry to the pharmaceutical and food industry to the national defense and military industries, stainless steel welded pipes play an irreplaceable role. At the same time, with the continuous improvement of technology and technology, the performance of stainless steel welded pipes has been continuously optimized and strengthened, providing support for various industries.