Din 50961 Fe Zn 8b -
Modern enforcement of and REACH restricts hexavalent chromium (Cr(VI)) in passivation layers. Traditional "type b" blue chromate often contained Cr(VI).
To understand this "code," one must break it down into its constituent parts, as each segment dictates a specific requirement for the finished part’s durability and appearance. 1. The Standard: DIN 50961 din 50961 fe zn 8b
If you need an equivalent with better protection while keeping 8 µm thickness, specify or a top coat (sealer) . din 50961 fe zn 8b