For the emission of nitrogen and air waste gases at 900 degrees, what material is suitable for the flue pipe?
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As the title suggests, the exhaust gases from industrial furnaces consist of high-temperature nitrogen and a small amount of air. What type of material would be suitable for pipes, taking into account factors such as cost, corrosion resistance, and heat resistance? Thank you!
It seems that few people know about this!
The main component is nitrogen, and nitrogen generally does not react with metals; therefore, only the factor of high temperature needs to be considered when selecting pipes.
If using a metal tube for exhaust, 304 will suffice
It seems that stainless steel is too expensive. Are there any cheaper materials?
I need to know what the temperature is in degrees Celsius
Since the pipe is covered with insulation material on the outside, the temperature loss is not significant; the temperature is likely to be between 900 and 700 degrees. Would a regular 20# seamless steel pipe suffer severe deformation under such high temperatures?
At 900°, stainless steel is likely not suitable either; stainless steel 304 can withstand up to 800°, while 316 can handle up to 900°