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How to recognize electrogalvanized vs. hot dipped steel?
December 6, 2011Dear Sir,
I would like to ask you the following question:
How to recognize from the outside a electro-galvanized surface and hot dipped in zinc bath such as steel wires.
Thank you and really appreciate your help,
Etienne
Hong Kong
buyer - Hong Kong
^- Privately contact this inquirer -^
December 6, 2011
Hi, Etienne.
If this is for casual talk over martinis at a bar, electrogalvanized materials are usually smooth, shiny, and bright, whereas hot dipped surfaces are usually either spangled (like the frost patterns on a window on a cold day) or dull and drippy.
But if it's a case where you absolutely have to be right, the answer is that appearances can be deceiving and you can't tell for sure from visual examination. Good luck.
Regards,
|
 Ted Mooney, P.E. RET finishing.com Brick, New Jersey |
December 8, 2011
Further to Ted's answer, the next step is to measure the thickness of the zinc. Typically electroplated zinc (assume that's what you meant by "electrogalvanized"?? is 8-10 microns, and hot dip galv perhaps 80-120 microns.
|
Geoff Crowley |