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Details of the production, application, and development of ASTM A928 duplex stainless steel pipes

When discussing the broad application areas and excellent performance of ASTM A928 duplex stainless steel pipes, we have to deeply analyze its material characteristics, production process, market position, and far-reaching impact on industrial development. As a high-specification, high-performance stainless steel pipe standard, ASTM A928 is widely used in many key fields such as chemical, petroleum, natural gas, pharmaceutical, and food processing. Its uniqueness lies not only in its excellent corrosion resistance and high temperature stability but also in its ability to adapt to long-term use requirements in extreme environments.

Details of ASTMA928 duplex stainless steel pipes
The products of ASTM A928 duplex stainless steel pipes should be confirmed to meet the requirements of TSGD7002-2006 “Type Test Rules for Pressure Piping Components”.
ASTM A928 duplex stainless steel pipe: ASTMA928/A928M Specification for electrofusion welded ferrite/austenite (duplex) stainless steel pipe with filler metal
The common product grades of ASTM A928 duplex stainless steel pipe are: UNS S31260, UNS S31500, UNS S31803, UNS S32101, UNS S32205, UNS S32304, UNS S32750
The product outer diameter of ASTM A928 duplex stainless steel pipe is 20~762mm and the wall thickness is 2.0~120mm.
The production method of ASTM A928 duplex stainless steel pipe: welding, delivery status: heat treatment + pickling
The material characteristics of ASTM A928 duplex stainless steel pipe: the perfect combination of corrosion resistance and high strength

The reason why ASTM A928 duplex stainless steel pipe can stand out among many materials is firstly due to its excellent material composition. Stainless steel pipes under this standard usually use high chromium, nickel, and other alloying elements to form a dense passivation film, which effectively resists the erosion of various corrosive media such as chloride ions, sulfuric acid, nitric acid, etc. At the same time, through a reasonable heat treatment process, A928 duplex stainless steel pipe also shows good mechanical properties, including high strength, high hardness, and good toughness, which enables it to maintain stability and safety when subjected to high pressure, high temperature, and complex stress environment.

The production process of ASTMA928 duplex stainless steel pipe: The production of stainless steel pipes that meet the ASTM A928 standard requires a series of strict and complex process flows. From the screening and preparation of raw materials to smelting, casting, hot rolling or cold rolling forming, to subsequent annealing, pickling, polishing, testing, and other links, each step requires strict control of quality parameters to ensure that the finished steel pipe meets or exceeds the requirements specified in the standard. Especially in the welding and heat treatment process, advanced automation equipment and strict quality control systems effectively avoid the generation of defects such as cracks and slag inclusions and improve the overall quality and reliability of the product.

Market position of ASTMA928 duplex stainless steel pipe: With the accelerated advancement of global industrialization, especially the rapid development of chemical, oil, and gas industries, the demand for high-performance and high-reliability pipes is growing. ASTM A928 duplex stainless steel pipe has become one of the indispensable core materials in these industries with its excellent performance and wide application adaptability. In the chemical industry, it is used to transport various corrosive media to protect equipment from corrosion; in the oil and gas industry, it carries the task of safe transportation of high-pressure oil and gas resources, ensuring the stability and safety of the energy supply.

Environmental friendliness and sustainable development of ASTMA928 duplex stainless steel pipe: It is worth mentioning that while pursuing high performance, ASTM A928 duplex stainless steel pipe also fully considers the requirements of environmental protection and sustainable development. Its excellent corrosion resistance reduces the risk of leakage caused by pipeline corrosion and reduces the possibility of environmental pollution. In addition, with the continuous advancement of materials science, more and more environmentally friendly stainless steel alloys have been developed, further improving the environmental performance of A928 duplex stainless steel pipe. At the same time, the recycling technology of waste stainless steel has become increasingly mature, making positive contributions to the recycling of resources and energy conservation and emission reduction.

Innovation and future prospects of ASTMA928 duplex stainless steel pipe: In the face of higher requirements and challenges of future industrial development, the production and application of ASTM A928 duplex stainless steel pipe will continue to innovate and upgrade. On the one hand, by introducing more advanced material science and manufacturing technology, the corrosion resistance, high-temperature resistance, and mechanical properties of steel pipes can be further improved; on the other hand, strengthening cooperation with upstream and downstream industries and promoting the optimization and upgrading of the industrial chain will help improve the added value and market competitiveness of products. In addition, as the world pays more attention to green and low-carbon development, the research and development and application of environmentally friendly and energy-saving stainless steel products will also become an important trend in the future.

In short, as a leader in the industrial field, ASTM A928 duplex stainless steel pipe continues to promote the progress and development of related industries with its excellent performance, wide application, and continuous innovation spirit. In the future, we have reason to believe that it will continue to play an important role on the global industrial stage and contribute to the construction of a safer, more efficient, and environmentally friendly industrial system.


Post time: Jun-23-2025