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What kind of pre-cleaning operation do we require for steel pipe

Thank so much for your published,I am a newly employed piping engineer ready to do pickling for some lube oil and fuel pipe lines.please could you tell me or advise me how to go about with the pre-cleaning operation before proper pickling and with what substance?

Patrick Alaka
piping engineer - Nigeria September 4, 2010

September 15, 2010

Sir:

Traditionally most steel is immersed in hot caustic soda ⇦liquid caustic soda in bulk on Amazon [affil link] (sodium hydroxide) solution prior to pickling with either room temperature HCl or hot sulfuric acid. Experience is that this is the best pretreatment for most mild steels.

Regards,

Dr. Thomas H. Cook
Galvanizing Consultant - Hot Springs, South Dakota, USA

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