Hot dip galvanizing
Hot-dip galvanizing is the most efficient protection of steel structures against corrosion.
The most important advantages of zinc coating include extended lifetime and resistance to mechanical damage because as the chemical steel undergoes chemical reaction with zinc, the layer of zinc covers the damaged area.
Even and optimal zinc coating can also be applied in places that are difficult to access.
Durability, high quality, quick delivery, flexible price system
MORIONIS UAB offers high-quality hot-dip galvanizing of steel structures that will considerably extend their lifetime. Hot-dip galvanizing is performed in Poland in a new zinc-coating shop equipped with state-of-the-art German and Italian hot Galvanizing technology.
We can apply zinc coating to large-size products, max. 13,0 m. We perform the works within a short period of time - 3/4 days.
Hot-dip galvanizing is carried out in compliance with EN 9001 norms. Zinc coating meets the requirements of EN 14713 and 1461.
MORIONIS, UAB is the official representative of the Polish company CynkoMet in Lithuania.
Galvanizing bath dimensions
From 9.0 x 1.3 x 2.5 m till 13.0 x 1.5 x 3.0 m.
Selecting the steel for hot-dip galvanizing
The thickness of zinc coat depends from the thickness of the detail being galvanized, the duration of immersing in zinc bath as well as the silicon, phosphorus content of steel.
When selecting the steel, it is important that silicon (Si) content is 0 – 0.04% or 0.15 – 0.25 %. If silicon content is 0.05 – 0.14%, the zinc layer may be too thick or rough and it may crack during operation.
If sulphur content is too high, it may also result in poor zinc-coating quality. Sulphur content should not exceed 0.2%.
During galvanizing process it is very important that aluminium elements are not present in the part that is being galvanized. Aluminium content should not exceed 0.02%.
Hot-dip galvanizing coat thickness
The thickness of zinc layer depends from silicon content in the metal, the time of immersion in the zinc bath and zinc melting temperature. Optimal thickness of the coat is from 70 to 120 micron. If possible – from 40 till 250 micron. A thicker zinc coat is prone to cracking and separation from the surface. For small products with the metal thickness of up to 3 mm, the optimal zinc coat thickness is 40 - 70 micron.