07Cr19Ni10 stainless steel, as a high-quality material widely used in high-pressure and high-temperature environments, has shown excellent performance in the manufacture of high-pressure boiler tubes and petroleum cracking tubes. This article will conduct an in-depth discussion of 07Cr19Ni10 stainless steel high-pressure boiler tubes and petroleum cracking tubes from multiple aspects such as material properties, manufacturing processes, application fields, and market prospects.
First, the material properties of 07Cr19Ni10 steel pipes
07Cr19Ni10 stainless steel, also known as 304H stainless steel, is an austenitic stainless steel. Commonly used implementation standards are GB/T5310, GB/T9948, and GB/T13296 Its chemical composition mainly includes carbon C: 0.04~0.10, silicon Si ≤1.00, manganese Mn ≤2.00, phosphorus p: ≤0.040, sulfur S: ≤0.030, nickel Ni 8.00-11.00, chromium Cr: 18.00-20.00. And other elements. Mechanical properties, with the following characteristics: tensile strength: ≥520MPa, yield strength: ≥205MPa, elongation: ≥40%, hardness: HB≤187, density: 7.93g/cm3
1. Excellent corrosion resistance: The high content of chromium and nickel makes 07Cr19Ni10 stainless steel have excellent corrosion resistance, especially in oxidizing and reducing media.
2. Good high temperature resistance: At high temperatures, 07Cr19Ni10 stainless steel can still maintain good strength and toughness, which makes it an ideal material for manufacturing high-pressure boiler tubes and petroleum cracking tubes.
3. Good processability and weldability: The material is easy to process and weld, and can meet the manufacturing needs of complex structural parts.
4. High strength and toughness: 07Cr19Ni10 stainless steel has high yield strength and tensile strength, while maintaining good toughness, and can withstand large mechanical and thermal stresses.
Second, the manufacturing process of 07Cr19Ni10 steel pipes
The manufacturing process of 07Cr19Ni10 stainless steel high-pressure boiler tubes and petroleum cracking tubes mainly includes raw material preparation, tube blank production, heat treatment, finishing, and inspection:
1. Raw material preparation: Select high-quality 07Cr19Ni10 stainless steel plates or coils as raw materials to ensure that the chemical composition and mechanical properties of the materials meet the standard requirements.
2. Tube blank production: The raw materials are processed into tube blanks through perforation, hot rolling, or cold rolling. In this process, the temperature and deformation amount need to be strictly controlled to ensure the organization and performance of the tube blank.
3. Heat treatment: The tube blank is subjected to solution treatment and aging treatment to improve the comprehensive performance of the material, eliminate stress, and ensure the stability and safety of the product during use.
4. Finishing: The inner and outer surfaces of the heat-treated tube blank are finished, including grinding, polishing, etc., to meet the customer’s requirements for surface roughness and dimensional accuracy.
5. Inspection: The finished product is strictly inspected, including chemical composition analysis, mechanical property testing, non-destructive testing, etc., to ensure that the product quality meets relevant standards and customer requirements.
Third, the application field of 07Cr19Ni10 steel pipe
07Cr19Ni10 stainless steel high-pressure boiler tubes and petroleum cracking tubes are widely used in the following fields due to their excellent performance:
1. High-pressure boiler: In high-pressure boilers, 07Cr19Ni10 stainless steel tubes are used as materials for key components such as superheaters, reheaters, and water-cooled walls. They can withstand the erosion of high-temperature and high-pressure steam and water to ensure the safe and stable operation of the boiler.
2. Petroleum cracking: In petroleum cracking units, 07Cr19Ni10 stainless steel pipes are used as pipe materials for catalytic cracking reactors, hydrocracking reactors, and other equipment. They can withstand the erosion of high-temperature and high-pressure hydrocarbon media and corrosive media, ensuring the long-term stable operation of the device.
3. Chemical equipment: In the chemical industry, 07Cr19Ni10 stainless steel pipes are used as materials for reactors, storage tanks, pipelines, and other equipment. They can withstand the erosion of various corrosive media and ensure the quality and production efficiency of chemical products.
4. Nuclear power and thermal power: In the field of nuclear power and thermal power, 07Cr19Ni10 stainless steel pipes are used as pipe materials for steam generators, coolers, and other equipment. They can withstand the erosion of high-temperature and high-pressure steam and cooling water, ensuring the safe and stable operation of nuclear power plants and thermal power plants.
Fourth, the market prospects of 07Cr19Ni10 steel pipes
With the continuous growth of global energy demand and the increasing awareness of environmental protection, the market demand for energy equipment such as high-pressure boilers and petroleum cracking units continues to grow. As one of the key materials for this equipment, 07Cr19Ni10 stainless steel high-pressure boiler tubes and petroleum cracking tubes have broad market prospects.
On the one hand, with the continuous development and application of new energy technologies, traditional energy equipment such as high-pressure boilers and petroleum cracking units are facing the need for upgrading. This will put forward higher requirements for 07Cr19Ni10 stainless steel high-pressure boiler tubes and petroleum cracking tubes, such as higher corrosion resistance, high temperature resistance, and processing performance. On the other hand, with the recovery of the global economy and the development of emerging markets, the construction of energy infrastructure is accelerating, which will further promote the growth of market demand for 07Cr19Ni10 stainless steel high-pressure boiler tubes and petroleum cracking tubes. Especially in emerging market countries such as China and India, with the acceleration of industrialization and the improvement of urbanization, energy demand will continue to grow, providing a broad market space for high-end materials such as 07Cr19Ni10 stainless steel high-pressure boiler tubes and petroleum cracking tubes.
In summary, as a high-quality material, 07Cr19Ni10 stainless steel high-pressure boiler tubes and petroleum cracking tubes have broad application prospects and market demand in the field of energy equipment. With the continuous advancement of technology and the continuous development of the market, this material will play a more important role in the future market and make greater contributions to the sustainable development of the energy industry. At the same time, relevant companies should continue to strengthen technological research and development and innovation, improve product quality and service levels, meet market demand and customer requirements, and achieve sustainable development of enterprises.
Post time: May-06-2025