buried SS pipeline coating

[shekher02]

Our requirement for on-going project is that we externally coat 30m of 304/304L dual grade buried stainless steel pipe with an anti-corrosion coating for corrosion protection. The design temperature range is from -80˚C to 65˚C. Please suggest an external coating for stainless steel which can sustain such temperature range.

 

[midris]

You can use phenolic epoxy coating. It withstands temperatures nearing 200 degC.

I have specified it for the external surface of liquid sulphur tank bottom plates where the operating temperture is 140 degC.

 

[shekher02]

but my concern is if it can also sustain temperatures of -80˚C ??

 

[midris]

There are numerous types of phenolic epoxy coatings. Search for PPG's interactive catalogue online and read about the temperature limitations.