While Germany has adopted many ISO standards, DIN 50961 remains in active revision and is still invoked in legacy drawings, OEM specifications (e.g., Volkswagen, BMW, Mercedes), and tooling documents. Many engineers understand "Fe Zn 8b" faster than "ISO 2081 Fe/Zn 8b."
To avoid ambiguity, use this comprehensive note on your engineering drawing:
By understanding the code—Fe (steel), Zn (zinc), 8 (8µm), b (blue passivation)—you can make informed decisions about corrosion strategy, cost, and compliance.
The Fe Zn 8b coating exhibits the following properties:
