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Due to their high corrosion resistance, electrogalvanized products are recommended for numerous applications in the automotive industry.
Electrogalvanized products, in both single and double sided versions, are particularly well suited for visible parts.
The dimensional feasibility of electrogalvanized coatings depends on the choice of steel substrate (see corresponding technical sheets) and on the manufacturing route involved.
The surface quality obtained meets the most stringent requirements with regard to final painted appearance of external body components.
The electrogalvanized coating consists of pure zinc and is therefore ductile, enabling it to withstand large deformations.
Suitable surface preparation prior to electrogalvanizing ensures coating adhesion.
Cross section of a 7.5 x 7.5 µm
electrogalvanized coating (x 1000)
Surface appearance of an
electrogalvanized coating (x 2000)
Unless otherwise specified, the standard coating thicknesses offered are 5 and 7.5 µm per side; However, other thicknesses may be considered. Please consult us.
The electrogalvanized coating is obtained by electrolytically depositing a layer of pure zinc. The absence of heating during the coating process enables electrogalvanized coatings to be employed without restriction on virtually all the steel grades developed by ArcelorMittal for the automotive industry.
The electrolytic process makes it possible to achieve a very high purity coating.
Electrogalvanized coatings offer excellent corrosion protection, even when damaged (impact, scratches, gravel impingement), due to the sacrificial electrochemical behaviour of zinc with respect to iron.
Electrogalvanized coatings have excellent intrinsic formability, making them suitable for the most severe drawing operations.
The tribological behavior of electrogalvanized coatings is slightly inferior to that of hot dip coatings, and for the most difficult parts can justify the use of an appropriate chemical surface treatment.
ArcelorMittal has a range of in-line surface treatments. Please consult us if necessary.
Electrogalvanized steels have a wide resistance spot welding range suited to industrial requirements.
Like all zinc coatings, electrogalvanized films show good adhesive bonding behavior, adhesion to the coating, adhesion of the coating to the metal and cohesion of the coating itself. The quality of bonding is determined essentially by the type of adhesive, the joining conditions, the nature of the protective oil and any chemical treatment that may have been performed.
Electrogalvanized products coated on one or both sides can be phosphated and painted at the user's premises using all current processes.
Note: Information contained in this catalogue is subject to change. Please contact our sales team whenever you place an order to ensure that your requirements are fully met. Please contact us if you have a specific requirement that is not included in the range of products and services covered by this catalogue. Contact form