DIN 50961 Electroplated Coatings - Test for Zinc Coatings on Iron or Steel

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of DIN 50961 testing. DIN 50961 is a German standard that specifies the requirements for electroplating zinc on iron or steel. The standard covers the terms and definitions, test methods and corrosion resistance of coatings.

Terms and definitions:

• Electroplating: Zinc coating on iron or steel applied by electroplating;
• Zinc: A chemical element with the symbol Zn and atomic number 30;
• Surface: Base material on which the coating is applied;
• Adhesion: The ability of the coating to adhere to the substrate;
• Corrosion resistance: The resistance of the coating to corrosion.

Test Methods:

• Thickness: The thickness of the coating is measured using a suitable instrument such as a magnetic induction meter or an eddy current meter;
• Adhesion: The adhesion of the coating is tested using the cross cut adhesion test or the peel test;
• Corrosion resistance: The corrosion resistance of the coating is tested using a salt spray test or an electrochemical corrosion test.

Corrosion Resistance:

The corrosion resistance of the coating is measured by the number of hours the coating can withstand corrosion when subjected to a salt spray test or an electrochemical corrosion test. The standard specifies different classes of corrosion resistance depending on the hours of endurance:

• Class 1: Minimum 24-hour endurance requirement;
• Class 2: Minimum 48-hour endurance requirement;
• Class 3: Minimum endurance requirement of 96 hours.

In summary, DIN 50961 specifies the requirements for electroplating zinc on iron or steel, including terms and definitions, test methods, and corrosion resistance. The standard is used to ensure the quality and performance of these coatings in a variety of industrial applications.

EUROLAB assists manufacturers with DIN 50961 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.