"Double-HDG"?
"Double-HDG"?
(OP)
Does anybody know if this is an actual process for coating steel (double-hot dip galvanizing)? I am trying to find a slightly more economical solution to stainless, and stumbled across this in my research...
Thank you.
JB
Thank you.
JB





RE: "Double-HDG"?
The 2 common methods for increasing galvanizing thickness are 1) Increasing surface roughness, and 2) Using a more reactive steel -- higher Si or P.
For more info, see the Galvanizers Association (UK) http://www.hdg.org.uk/203_The_Coating.php
See also
American Galvanizers Association www.galvanizeit.org
Galvanizers Association of Australia www.gaa.com.au
*maybe a mistranslation (English-to-Chinese-to-English?) of sheet coated two sides.
RE: "Double-HDG"?
What king of parts are you working with? There may be more economical stainless options.
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RE: "Double-HDG"?
These parts would primarily be deck hardware and bracketry for a boat yard/launching facility (i.e. forklift stop plates, travel lift wheel guards, pivot plates, etc.). They be boled to a concrete deck, and be in direct and frequent contact/exposure to salt water, sunlight, abrasion, etc. Obviously S.S. 316 would be a great solution for this situation, however, when required plate thicknesses are approx. 0.5-1" (and areas greater than 200sf), it's not something most Clients can afford.
I am thinking that a structural A36 with a "heavy-weight" HDG coating would be the most cost effective solution, while providing similar (if not better) service peformance than it's economic [stainless] equal... I mean, I would get better strength allowing me to reduce the thickness, thus creating a cost savings for the extra surface prep. and heavy-HDG.
What do you think?
Thanks,
RE: "Double-HDG"?
http://
This is a duplex stainless grade. It is stronger than either 316 or carbon steel, it is more corrosion resistant than 316, and it costs less than 316.
In places where abrasion/rubbing/wear is an issue look at the AL2003. In other application heavy galv makes sense.
= = = = = = = = = = = = = = = = = = = =
Rust never sleeps
Neither should your protection
http://www.trent-tube.com/contact/Tech_Assist.cfm
RE: "Double-HDG"?
Depending on local availability, we will consider this material as a potential substitute for 316 in the future.
Thanks again!