Material selection
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Could someone with experience please advise me? For a design temperature of 150° and a pressure of 0.6 MPa, what pipeline materials are suitable for transporting liquid sodium?
Due to its unique chemical properties, high temperature, and corrosive characteristics, liquid metallic sodium requires that pipeline materials possess corrosion resistance, heat resistance, and compatibility with sodium when selecting them. For a design temperature of 150°C and a pressure of 0.6 MPa, the following materials are commonly used for liquid sodium: 1. Stainless steel: Certain stainless steel grades exhibit good corrosion resistance and strength at high temperatures; for example, 304 and 316 stainless steels are widely used in systems for transporting liquid sodium. 2. High-nickel alloys: Alloys such as the Inconel series (especially Inconel 600) can maintain good mechanical strength and corrosion resistance at high temperatures. 3. Austenitic stainless steel: Certain special grades of austenitic stainless steel (such as 310S) may also be chosen due to their excellent high-temperature resistance. 4. Depending on the actual operating conditions, it may be necessary to use coating or lining protective materials to enhance the corrosion resistance of the pipes when exposed to high-temperature liquid sodium. When selecting specific materials, factors such as cost-effectiveness, process feasibility, and compatibility with materials from other systems also need to be considered. It is recommended to consult material science experts or review technical manuals and standard specifications related to the transport of liquid sodium before finalizing the choice of material, to ensure that the selected material meets safety and performance requirements. At the same time, necessary experimental tests are conducted to evaluate the performance of the material under actual working conditions. .
It’s still pretty good, haha, quite nice
Thank you for your guidance, big bro. I have one more question: are there any special requirements for the valves used on such pipes?
Does this friend have any experience with sodium metal pipelines? How should the pipeline valves be selected in this case? No requirements and specifications for metal steel pipes were found