Household Prepainted Galvanized Steel Coil Industrial Construction
Description:
Galvanized sheet or coil is defined as a carbon steel sheet coated
with zinc on both sides. Continuous hot
dipping, or electro-galvanizing are the two processes used to
produce galvanized sheet and coil. Generally speaking, the hot
dip process consists of passing the steel through a bath of molten
zinc. The electro-galvanizing process consists of the application
of zinc by electrolytic disposition. The result is a layer of
zinc tightly adhering to the base metal through an iron-zinc
bonding layer.
A zinc coating is one of the most effective and economical methods
of protecting bare steel from a
corroding environment. The zinc not only serves as a barrier
between the steel and the environment, it will
sacrifice itself to protect the underlying steel sheet.
Sacrificial, or galvanic protection occurs when two
dissimilar metals are in contact and coupled with water and oxygen.
Zinc corrodes preferentially to the iron
in steel. This protection prevents corrosion of the steel at areas
not covered with zinc. Thus, the spread of
corrosion from cut edges, drill holes, etc. is minimized.
Our Hot-dipped Galvanized products, as well as our Galvannealed
(zinc-iron alloy coated) products are
manufactured to ASTM A-653 specifications. Our Electrogalvanized
products conform to ASTM A-879.
Material Types for Galvanized Coil and Sheet Steel
Commercial Steel (CS Types A, B, and C)
Forming Steel (FS Types A and B)
Deep Drawing Steel (DDS Types A and C)
Extra Deep Drawing Steel (EDDS)
Structural Steel (SS) – further designated by Grades
(33,37,40,50,80)
High Strength Low Alloy Steel (HSLAS)
In addition, the Hot Dipped Galvanized as well as the Galvannealed
products are available in a variety of
coating weights including G-90, G-60, G-40, and G-30 for the Hot
Dipped Galvanized products, and A-60
and A-40 for the Galvannealed products.
Typical Applications for Galvanized Coil and Sheet Steel
Typical applications for Galvanized Coil and Sheet products include
exterior building products, ductwork,
HVAC products, flashing, electrical boxes and other electrical
products, roofing, doors, sashes, automotive
parts, appliances, commercial and residential steel framing, truss
plates, metal building purlins, and any
other products requiring a corrosion resistant material. As the
primary supplier of galvanized sheet and coil
to over 1500 customers for over 20 years, just let us know the end
use of your product and we can help
you find the material that is right for you!
