Hot-Dip Galvanizing Against Corrosion
Graepel-STUV GmbH in Seehausen has its own galvanizing shop with an annual capacity of 6,000 t. Not only do we apply a durable and effective corrosion protection coating onto our products but we also offer this service to companies and private customers in compliance with DIN ISO EN 1461.
Our certifications:
- DIN EN ISO 9002 (since 1993)
- DIN EN ISO 14001 (since 2009)
- DASt-Richtlinie 022 (DASt directive 022) -> Ü-mark (since 2009)
The hot-dip galvanizing process:
- tieing-on
- pickling
- pickling 2
- pickling 3
- before immersion in the zinc bath
- in the zinc bath
- withdrawn from the zinc bath
- withdrawn from the zinc bath 2
- tieing-off
- ready for dispatch
- transport
The steel parts are immersed in a liquid zinc bath at a temperature of about 450 °C and remain inside the bath until the material has assumed the temperature of the zinc bath. The galvanizing process is completed. The coating-thickness depends on the material thickness and is between 50 – 100 µm.
Advantages:
- durable corrosion protection, the annual erosion rate for hot-dip galvanized parts in standard atmosphere is about 1 µm per year
- high impact strength
- no peeling off
If you would like to make use of our galvanizing service, please observe the parameters below:
1. Tieing dimensions:
- maximum length = 6.50 m
- maximum width = 0.80 m
- maximum height = 1.80 m
2. Loads:
- maximum load per crossbeam: up to 1.4 t
- individual load without crossbeam: up to 2.0 t (on request)
