Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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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,
Galvanizing Consultant - Hot Springs, South Dakota, USA
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