Products Description
Galvanized steel coils are commonly used for a wide variety of
applications due to their excellent corrosion resistance, strength
and versatility. Some of the most common uses for galvanized steel
coils include.
Construction. Galvanized steel coil is widely used in the
construction industry for roofing, siding and framing due to its
strength, durability and ability to withstand harsh weather
conditions.
Automotive industry. Due to its corrosion resistance and strength,
galvanized steel coil is commonly used in the automotive industry
for the manufacture of various components such as body panels,
chassis components and exhaust systems.
Household appliances. Galvanized steel coils are used in the
manufacture of household appliances, such as refrigerators, ovens
and washing machines, because of their corrosion resistance and
aesthetic appeal.
The steel is cooled in a quench tank to reduce its temperature and
inhibit undesirable reactions of the newly formed coating with the
atmosphere.
Lead is often added to the molten zinc bath to improve the fluidity
of the bath (thus limiting excess zinc on the dipped product by
improved drainage properties), help prevent floating dross, make
dross recycling easier and protect the kettle from uneven heat
distribution from the burners. Environmental regulations in the
United States disapprove of lead in the kettle bath although lead
in such amounts and alloyed with zinc is harmless. Lead is either
added to primary Z1 grade zinc or already contained in used
secondary zinc. A third, declining method is to use low Z5 grade
zinc.
Steel strip can be hot-dip galvanized in a continuous line. Hot-dip
galvanized steel strip (also sometimes loosely referred to as
galvanized iron) is extensively used for applications requiring the
strength of steel combined with the resistance to corrosion of
zinc, such as roofing and walling, safety barriers, handrails,
consumer appliances and automotive body parts. One common use is in
metal pails. Galvanised steel is also used in most heating and
cooling duct systems in buildings
Individual metal articles, such as steel girders or wrought iron
gates, can be hot-dip galvanized by a process called batch
galvanizing. Other modern techniques have largely replaced hot-dip
for these sorts of roles. This includes electrogalvanizing, which
deposits the layer of zinc from an aqueous electrolyte by
electroplating, forming a thinner and much stronger bond.