Home /
Search 🔍
the Site

Chime right in! (no registration req'd)


"Are there any methods known to make an electrogalvanized Galvannealed alloy?"

February 25, 2010

Two other students and me are working on an electrogalvanized Galvannealed alloy for a company. The company works with the electrogalvanized manufacturing method. They want to know if it is possible to make a Galvannealed (ZF) alloy out of an electrogalvanized Zn/Fe alloy.
We only know that it is possible to make a Galvannealed alloy out of a hot-dipped alloy.
So are there any methods known, how to make an electrogalvanized Galvannealed alloy?

With kind regards

Tobias Bödefeld
university student - Germany

February 25, 2010

Hi, Tobias. This sounds like a semantics question as much as a technical issue. In other words, are you trying to be able to "get away with" calling this surface "Galvanneal" or are you trying to match the properties of hot-dip galvanneal? Which properties? Certainly a zinc plating that is not as thick as hot dip galvanizing would fail the "equivalent corrosion resistance" property, but zinc-iron electroplating is common, and coatings of .0003" (about equal to 100-120 g/m2) sound possible. So ignoring the word "galvanneal", what are you actually trying to do? Thanks.


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

March 2, 2010

Hi finishing.com visitors,
my name is Tobias, you can call me Toby.
I am working at a components suppliers company in Germany.
Since a couple of years we are working with a new method of rolling steel sheets. It is called ̣tailor rolling". With this rolling method you can produce steel sheets with different thicknesses. Last year we started to galvanize our products, the ̣tailored rolled blanks", in our company. Because of the different thicknesses of the coil we are working with the electrogalvanizing method.
Our problem is, that the automobile company in Asia are using a different kind of zinc-alloy, called Galvanealed-alloy (GA). They heat the hot-dip galvanized coil up to 550°C for a short time (less than one minute). The zinc- and iron-alloy diffuse in that time. In the end you get a zinc-iron-alloy on the surface instead of an only zinc-alloy.

Now my question is: "Is it possible to produce a Galvanealed-alloy(GA), using an electrogalvanized zinc alloy instead of a hot-dip galvanized alloy?"

Maybe a similar method of coating exists. Does anybody know something about such a method?

Our company wants to develop the Asian marked with the "tailored rolled blanks", so it is important for us to know if it is possible to produce a galvannealed(GA) coated tailored rolled blank.

Thank you for your time.

With kind regards


Tobias Bödefeld
engineer - Lennestadt, NRW, Germany

finishing.com is made possible by ...
this text gets replaced with bannerText
spacer gets replaced with bannerImages

Q, A, or Comment on THIS thread SEARCH for Threads about ... My Topic Not Found: Start NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

Chemicals &
Consult'g, Train'g
& Software

About/Contact    -    Privacy Policy    -    ©1995-2021 finishing.com, Pine Beach, New Jersey, USA