Material selection for Desalination plants and brine solution

[Hrushikesh Sangamnerkar]

Dear expert,

Which material is suited to desalination plants keeping in mind the corrosion resistant properties?

Will titanium work well?

If any references or process licensors data available specifically for these applications do share.

Regards,

[Hemant W Joshi]

To shri h. sangamnekar

 

Titanium could be very costly . is the piping meant for raw sea water or the desalinated water?

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[rehan khan]

Dears,
Titanium is for sea water.                            Thanks & Best   Regards                                                                Rehan

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[Hrushikesh Sangamnerkar]

Desalination water

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[pkra...@gmail.com]

Can use GRP / Rubber coated steel pipe.

[Dhanabal Jalachandran]

Dear Friend,

 

Stainless steels are the most widely used material in desalination plants. The ideal material for use in desalination plants is titanium because it suffers little to no corrosion in saltwater environments. However, titanium is far more expensive than stainless steels. There are advancements being made to improve the corrosion resistance of stainless steels. Highly alloyed ferritic and austenitic stainless steels are being tested in salt water in comparison to titanium. The stainless steels are normally alloyed with chromium, nickel, molybdenum, and nitrogen to improve their corrosion resistance.

 

Br

Dhanabal Jalachandran

 

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[anjansaini]

CS with rubber lining and monel or non metallic (GRE/FRP/HDPE)

titanium would be costly

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[Ramin Kondori]

Duplex grades 

Ramin  Kondori

Sr. QA/QC & Welding Engineer

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PG-Dip. in Welding Engineering (IWE  AT  0070)

BSc. in Civil Engineering (IUT)

BGAS Painting Inspector

ASNT Level I&II

                        

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[Vinay Thattey]

Titanium is a much tougher metal and much more corrosion resistant than stainless steel , however economic aspect with expected life is to be considered for material selection . Its not clear ; what is your end use i.e vessel , pump shaft , bodies , general fabricated structures etc. Duplex steel is also suggested . 

Nickel based alloys like Monel can also be used ( ASTM B 163c , 165 ) .

I suggest pump bodies etc made of duplex steel . For ordinary brine containing vessel Rubber lines CS can also be used .  Remember austenitic SS is not a wonder material .

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