To avoid ambiguity, use this comprehensive note on your engineering drawing:
Each segment of the designation provides specific instructions for the plating process: : Represents the base metal , typically iron or steel. Zn : Indicates that the coating material is zinc . din 50961 fe zn 8b
If you need a one-line product label or a translation for marking (German → English) or a short spec sheet (thickness, salt spray hours, torque coefficient), tell me which format and I’ll produce it. To avoid ambiguity, use this comprehensive note on
Electrodeposited zinc coating, 8 µm minimum local thickness on all functional surfaces, followed by trivalent blue/clear chromate passivation. No white rust before 8 hours NSS per ISO 9227. Hydrogen embrittlement relief: Bake at 200°C for 8 hours within 4 hours of plating for steel >1000 MPa. Electrodeposited zinc coating, 8 µm minimum local thickness
is a German technical specification for electroplated zinc coatings on iron or steel. It is often used in conjunction with ISO 2081 , which has largely superseded or supplemented it for modern industrial requirements. Specification Breakdown
Some specifications add a top organic or inorganic sealer to enhance corrosion resistance, though this is not required for "8b."
When specifying surface finishes for steel components, clarity and standardization are crucial. One common designation you’ll encounter is . But what does it actually mean?