Hi,
I am designing a electric immersion heater for a Molten Sulphur Tank heating.
The fluid to be heated is the molten sulfur with small amount of hydrogen (H2)
bubbles to 450 Deg C.
I am worried about the Material of construction suitable to operate in this fluid.
Which is better suited ( in terms of corrosion resistance) in these listed materials( SS321, SS316, Incoloy 800, Inconel 600, Inconel 625, Incoloy 825, Incoloy 840)
The wall thickness of the heating elements ( which will be immersed into the molten sulphur) will be 1.25 mm only & heated to a max 550 deg C temp.
high-purity quartz glass/silica glass with a reduced number of OH groups
Hi Mr. Mohanta,
Thanks for guidance.
Between SS316L & Incoloy 825, which material has better corrosion resistance & what is corrosion rate ?.
The heater will be fully immersed in the fluid & is for continuous operation. The tube surface is expected to operate at a temperature of 550 deg C.
Size of each tube is 50NB , sch 5 x 33.4 mtrs long. ( there will be 45 such tubes in one assembly).
even a single tubes failure due to corrosion ( or any other reasons) will require complete shutdown & replace of the heater assembly. Hence it is highly critical to understand & choose the best suited material.
Trust you will be able to provide me more details on selection of right material & reason for the selection.
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