The standard uses a specific coding system for technical drawings, structured as follows: DIN 50979 – [Basis Metal] // [Coating][Thickness] // [Passivation] // [Sealing] . An : Transparent (Thin-layer passivation). Cn : Iridescent (Thick-layer passivation). Fn : Black. Corrosion Resistance Performance
The DIN 50979 standard has a wide range of applications across various industries. Some examples include: din 50979 pdf free download
This standard is critical for industries requiring high corrosion resistance without the use of hazardous hexavalent chromium. : Zn : Pure zinc coating. ZnFe : Zinc-Iron alloy (0.3% to 1.0% Iron). The standard uses a specific coding system for
The primary objective of DIN 50979 is to protect ferrous components against corrosion while complying with modern environmental regulations. The standard applies to coatings where zinc is alloyed with nickel or iron to enhance durability. A defining feature of this standard is its focus on Cr(VI)-free passivation Fn : Black
In the realm of industrial metallurgy, corrosion is a relentless force that accounts for significant economic losses annually—estimated at roughly 4% of the gross national product in industrialized nations. To mitigate this, protective coatings are applied to steel and iron components.