With a steam medium pressure of 39 kilograms and a temperature of 250 degrees, can S30408 steel plate be used?
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There is a DN600 heater using water vapor as the medium, with a pressure of 39 kilograms and a temperature of 250 degrees. Can S30408 steel plate be used for the material of the outer shell of the container?
S30408 stainless steel (also known as 304L stainless steel) has good corrosion resistance and strength, but caution is required when using it under high temperature and pressure conditions. For water vapor at a pressure of 39 kilograms and a temperature of 250 degrees, it is generally recommended to use higher-grade materials such as 316L stainless steel, as they offer better resistance to high temperatures and pressures. The specific choice also requires consideration of the heater’s design standards and safety requirements; it is advisable to consult a professional engineer for an evaluation. .
S30408 stainless steel (also known as 304L stainless steel) has good corrosion resistance and strength. The allowable stress at 250 degrees Celsius is approximately 149 MPa, so it is suitable for use.
The pitting resistance equivalent of 316L is higher than that of 304, with little difference in strength. . .
S30408 is 304 stainless steel (not 304L)
S30408 is 304 stainless steel with the grade 0Cr8Ni9; according to the allowable stress table, the value for pipes with a thickness of ≤14 mm at 250°C is 122 MPa； ≤A 18mm thick tube has a stress of 90MPa at 250°C. The container is designed for DN600 pipes; referring to the specific wall thickness, it should be usable when it is ≤18mm.
Considering a temperature of 250°, S30408 can be chosen as the material. If there are no other factors that need to be taken into account, using S30408 is perfectly fine. Therefore, given the known temperature and material conditions, S30408 can be selected for the equipment casing