Issues with the material of the flue gas pipes
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For flue gas pipes with a diameter of DN1000 mm, a pressure of 3 kPa, and a temperature of 350 degrees, what materials are generally used for such pipes (domestically produced)? What materials are typically used for the flanges and gaskets?
The material is 20# carbon steel, and asbestos-free sealing materials can be used for the gaskets
Carbon steel pipes can be used at 350°C, but it is necessary to consider whether the temperature might drop below the dew point Due to the large diameter, a lining can be added inside as appropriate.