Heating furnace drying
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Why, during the heating process of the furnace, should the temperature of the medium at the outlet of the furnace tubes be no more than 350°C for carbon steel tubes, and no more than 450°C for chromium-molybdenum steel tubes? What is the basis?
Refer to SH/T3115.
Different furnace tube materials have different allowable temperature limits
This is mainly because the materials of the two are different, as are their temperature resistance ratings. Chromomolybdenum steel has a higher temperature resistance rating than ordinary carbon steel.
Please provide the full standard name as well as the relevant clauses of the standard; a screenshot would be ideal
Thank you, sir. It’s in Appendix A, but it’s not the screenshot you sent; moreover, only the data for carbon steel at 350 degrees was found, and no data for chromium-molybdenum steel was found. . .