Please everyone analyze the weld corrosion issue in the pipeline for oxygen and steam mixtures
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Our company has a pipeline made of 304 material, used to transport a mixture of oxygen and steam; the volume flow rate ratio of oxygen to steam is 1:1. The operating pressure of this pipeline is 3.0 MPa, and the operating temperature is 200°C. Since the pipeline was put into use, sand holes and surface cracks have occurred multiple times in the welds and within a range of 1–2 cm around them. Even after repairs or replacement of the pipeline, and after the welds were inspected and found to be satisfactory using X-rays, sand holes and cracks reappeared shortly thereafter. Dear sea friends, please analyze the reasons and suggest any good solutions. Thank you so much!
:lol:lol:lol What components are there in steam? . . It’s probably CL ions and such. . .