ArcelorMittal's E-Passivation^® is an environmentally friendly, chromate-free passivation or temporary protection system. This surface treatment comprises a mineral (and organic) layer containing corrosion inhibitors. Passivation is applied by means of a continuous process on the metallic coating line. E-Passivation^® is available on ArcelorMittal's wide range of metallic coated steels. 

The essential role of E-Passivation^® is to provide corrosion protection (resistance to metallic coating oxidation) during normal handling, transport and storage.

E-Passivation^® complies with current European legislation banning the use of hazardous substances such as hexavalent chromium: the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment and the End-of-Life Vehicles directives. 

E-Passivation^® also complies with the chemical passivation described in the different European standards for metallic coated flat carbon steel.

Metallic coated steels with E-Passivation^® can be used in a very wide range of applications for industrial markets:  

• Domestic appliances: both white and brown goods
• Building: cladding, roofing, profiling etc 
• Miscellaneous: electrical cabinets, aeraulic components, air conditioners, road signs etc

E-Passivation^® can be applied on all steel grades suitable for continuous metallic coating.

See the corresponding data sheets of the metallic coated steels.

ArcelorMittal offers E-Passivation^® for different metallic coated steel substrates:

• Electrogalvanised steel + E-Passivation^®
• Jetskin^® + E-Passivation^®
• Hot dip galvanised steel + E-Passivation^®
• Galfan + E-Passivation^®
• Magnelis^® + E-Passivation^®
• Alusi^® + E-Passivation^®
• Alupur^® + E-Passivation^®

Different combinations of E-Passivation^® with other surface treatments are available:

• Available

N/A = Not available

The table below gives an overview of the performance of E-Passivation^® on hot dip coatings.

(1) Resistance to salt spray test according to EN ISO 9227 (evaluation: number of hours before maximum 5% white or black rust appears on the metallic coating)

(2) Resistance to humidity cabinet test according to EN ISO 6270-2 (evaluation: number of hours before maximum 1% white or black rust appears on the metallic coating)

(3) Resistance to stack test (evaluation: time before maximum 5% white or black rust appears on the metallic coating) (procedure: different sets of samples are piled up and a load of 10 kg is positioned on top of this pile. Deionised water is sprayed between two treated sheets at the start of the test and thereafter once a week. The stacked samples are stored indoors for 8 weeks at room temperature. Visual inspection of the surface is carried out weekly.)