Here are some of the basic rules which should
be followed during design and fabrication.
- You can galvanize all mild steels (essentially, they
should be free of any other coatings)
- You can galvanize a wide variety of shapes and sizes
and weights. For odd / unusual shaped items, please feel
free to contact us on +974 55571029 .
- Follow the design guidance about vent / drainage holes
in hollow sections.
- Avoid overlapping surfaces if possible. If you cannot
avoid them, make sure you follow the venting guidance (ref
: engineers & architects guide for Hot Dip Galvanizing)
- Remember the galvanizer must lift and turn your fabrication.
Make sure you provide lifting points / lugs etc for him
- Do not ask your galvanizer to galvanize fabrications
which are very stiff in one plane but not in another. They
will almost certainly distort.
- Avoid large unsupported areas of Sheets / Plates / fabricated
steel. They will probably distort.
The galvanizing reaction between zinc and steel takes place
in liquid zinc, usually at 445 - 455 deg. C. At this temperature
iron and zinc react quickly. Typically the steel may be in
the zinc for only a few minutes. The fabrication is taken
out of the zinc, when the reaction is complete. Although the
zinc coating has already formed, it's internal structure continues
to change until the steel returns to normal temperature.