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topic 8510

Electrogalvanising Procedure


2001

I'm in dire need for specification on electrogalvanising procedures in the field of laboratory application for oil & gas, petrochemical industry, hospital laboratories & for schools.

We would appreciate your response on the above requirements or any references with regards to this application.

Thank You.

S. Vicknesh
- Kuala Lumpur, Malaysia


2004

would like to know what response he received as I am also keen on info on this subject

michael mitchell
- cape town, south Africa

Ed. note: "Electrogalvanizing" is simply another name for zinc electroplating, Mr. Mitchell. Our "must-have" booklist and our link to metal finishing books at Amazon include a number of electroplating books that will get you started. There is an awful lot to the subject, including dozens if not hundreds of MIL, ASTM, SAE, ISO, and other specs. Please post the details of your actual situation and the readers will probably help you. Good luck.


December 23, 2008

We have procured carbon steel threaded fittings (couplings, tees, etc.) with electro galvanising with 25 microns thickness instead of Hot-dip galvanising of 70 microns.
Is the electro galvanising is equal to hot dip galvanising in terms of protection from sea water.

Also give us the ASTM standard for electroplating.

R. Devanandam
engineering and construction - Doha, Qatar


December , 2008

Sorry, R., but 25 microns of zinc in not a proper substitute for 70 microns of zinc. It's only about 1/3 as thick and will only last about 1/3 as long. As mentioned there are numerous ASTM standards for electroplating, but a good starting point is probably ASTM B633 [affil. link to spec at Techstreet]

Regards,

Ted Mooney, finishing.com Teds signature
Ted Mooney, P.E.
finishing.com - Pine Beach, New Jersey
Striving to live Aloha

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