Corrosion Data on Galvanneal Steel
Do you have any data comparing corrosion performance between galvanneal and pickled hot-rolled steel?
Share
Q. I am the engineering manager at my plant and would like to reduce our manufacturing costs by changing our transformer material from galvanneal to pickled hot-rolled steel. Do you have any data comparing corrosion performance between these two materials? Both items will be post-painted with a powder coating. A.N.
A. The corrosion resistance of galvanneal-treated steel is considered far superior to pickled hot-rolled steel, but I have no data in my archives to support this. This kind of information usually is generated by manufacturers, metal pretreatment suppliers and steel mills, so I suggest you contact your pretreatment supplier. Remember that the hot-rolled steel also will have to be pretreated before powder coating. Although it won’t provide the same level of corrosion protection as galvanneal, I would recommend a zinc phosphate pretreatment.
RELATED CONTENT
-
The Hull Cell: Key to Better Electroplating - Part II
How to use it for planning, preventive maintenance and troubleshooting.
-
Stripping of Plated Finishes
The processes, chemicals and equipment, plus control and troubleshooting.
-
VDA 19 and its Impact on European Manufacturing and Cleaning
The German Association of the Automotive Industry’s VDA Volume 19 is the first comprehensive standardization document for characterizing the cleanliness of products within the automotive industry’s quality chain.
