HAICHEN brake discs are usually made of gray cast iron (with flake graphite) of different quality; the brake discs should correspond to the material of the original spare part.

The casting quality used contains only very small amounts of alloying elements with a corrosion-inhibiting effect. If products made from such materials are exposed to adverse weather conditions (e. g. rain, fog, high humidity, melting snow or de-icing salts), the product will rust after a short period of time. In order to counteract this corrosion, all HAICHEN brake discs and brake drums are in principle coated with an anticorrosive coating.

Most of the products in HAICHEN company's product portfolio are coated with "Coat Z" corrosion-resistant coating. This ensures that the corrosion tendency of the contact-free region of the brake lining is significantly reduced.