Materials for high-temperature reactors
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I would like to ask: for a reaction that requires a high temperature of around 800 degrees, what type of reactor material should be used? Thank you! !
Use a reactor made of high-temperature resistant stainless steel
Inconel 800H nickel-based material can be used
Is this high-temperature resistant material expensive?
What are the advantages and disadvantages of the HP40 alloy compared to these high-temperature resistant materials, and does it have a price advantage? Thank you! !
Factors such as the medium and pressure also need to be considered; what is the size of your reactor?
Nickel-based alloys such as 800H, etc. – also pay attention to the corrosivity of the medium, pressure, temperature, etc. The regulations for nickel alloy pressure vessels provide details on this.
The optional corrosion-resistant alloy NS3306 has an allowable stress of 31 MPa at 800 degrees.
With such high temperatures, if possible, consider adding a lining.
It’s better to have a reputable design firm develop a plan for this; using nickel-based alloys is completely unrealistic – such materials cost hundreds of thousands of dollars per ton. I have seen some designs that use a steel body made of 15CrMoR with a design temperature of over 250 degrees, along with three layers of high-temperature resistant castable bricks; an alloy sheet based on nickel is also used as a layer on the inner side to protect against medium erosion.