Glossary – our knowledge from A to Z

Steel products with improved deformation properties according to DIN EN 10164 must be used for plates loaded perpendicular to their plane. Specially produced specimens are subjected to tensile tests perpendicular to the plane of the material in order to determine the Z grade. Grades: Z15, Z25, Z35.

A coating for protecting bulk components (fasteners, small parts) against corrosion which is applied by means of an immersion or dip-spinning process. The base coat consists of layers of zinc and aluminium. The zinc assures cathodic corrosion protection. Dry-film lubricants can be incorporated into the top coat.

In this galvanising method a zinc wire is melted by a flame or electric arc and applied to the workpiece in atomised form with the help of compressed air. The zinc forms a porous layer on the workpiece while it is still in liquid form and exhibits good corrosion protection properties.

A special type of paint that prevents corrosion. Zinc-rich paint is applied to surfaces – by brushing or spraying – when hot-dip galvanising of those surfaces is not possible for technical or aesthetic reasons.

Electrogalvanised sheet steel.