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General Fabrication Any Fab that does not fit into another Forum

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  #1  
Old 09-04-2015, 09:51 PM
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derekgabs derekgabs is offline
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Join Date: Sep 2015
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Boiler design help

Im trying to build a small steam boiler and i dont seem to know what kind of material to use for my boiler tube. My design would range about 100psi - 150psi in pressure and i want to know what materials would be good for that pressure. I had seen one fabricated using copper tubes i dont know if it would not break or cause leaks in my design and another used DOM tubes.

I dont know if there are available DOM tubes here in the philippines and i would like to know if there are any other materials that can be good to be used as boiler tubes.
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Old 01-26-2016, 08:22 PM
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Skinny Skinny is offline
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Boiler tubing varies i.e.; 600 mw coal fire boilers can use anything between T1-T22 material from front wall back to convection wall. Different heat zones require different material. How much volume of water will you be using? How will you be creating the heat?
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Old 01-27-2016, 12:02 PM
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IceFyre13th IceFyre13th is offline
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Two links below will give you more information than you will ever need.

Copper is the first choice, less to worry about corrosion wise.
Steel has been used as it is strong, but rust is an issue.
Brass is bad, De-zincafacation (zinc will leach out of the brass) will lead to a boiler explosion. With steam this is very bad.

Links:

Very user friendly below, everyone will help out:

http://www.homemodelenginemachinist.com/

Read the boiler section below:

http://www.modelenginemaker.com/
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