Applications of 304 steel plates in pressure vessels?
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When purchasing 0Cr18Ni9 steel plates to manufacture pressure vessels, can 304 steel plates that meet American standards be used? Are the two the same?
304 sheet can be used, but procedures for substituting materials must be handled in accordance with the design requirements
It is to submit an application for substitute documents.
During the period when non-ferrous metal prices soared some time ago； 304 steel plate is much cheaper than 0Cr18Ni9. As long as the 304 material meets the standards of ASTM A-240 or ASME SA-240, it can be used. But there must be alternative procedures; special attention should be paid when the drawing specifies requirements for the S and P contents of the steel plates. Because the S and P content in US standards is higher than that in GB standards