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Galvanized Steel Sheets

HR galvanized steel plate

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Valin Special Steel (Tianjin) Co., Ltd. is a leading supplier of galvanized steel sheet & coil. Galvanized steel is defined as a carbon steel sheet coated with zinc on both sides. There are two main processes used to produce galvanized steel: continuous hot dipping and electro-galvanizing.


The hot dipping process consists of passing the steel through a bath of molten zinc, while the electro-galvanizing process consists of the application of zinc through electrolytic disposition. The result is a layer of zinc tightly adhering to the base metal through an iron-zinc bonding layer. Our hot dipped galvanized products are manufactured to ASTM A653 specifications; our electro galvanized products conform to ASTM A879 specifications.



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, but it will also 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.


Galvanized Steel Size Chart

Product-Coated: Hot Dipped Galvanized | ASTM:A653 | Grade: CS-B | Surface:Min Spangle | Treatment: CT-DryG6028GA (.0217 MAX - .0157 MIN)364860G3030GA (.0187 MAX - .0127 MIN)3648***


Coating

Thickness

Width

Width

Width

G90

10GA (.1472 MAX - .1292 MIN)

***

48

60

11GA (.1323 MAX - .1143 Min)

***

48

60

12GA (.1174 MAX - .0994 MIN)

***

48

60

13GA (.1014 MAX - .0854 MIN)

***

48

60

14GA (.0865 MAX - .0705 MIN)

36

48

60

16GA (.0696 MAX - .0575 MIN)

36

48

60

18GA (.0566 MAX - .0466 MIN)

36

48

60

20GA (.0506 MAX - .0356 MIN)

36

48

60

22GA (.0436 MAX - .0296 MIN)

36

48

60

24GA (.0316 MAX - .0236 MIN)

36

48

60

26GA (.0247 MAX - .0187 MIN)

36

48

60


Additionally, the Hot Dipped Galvanized and 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.


At Valin Special Steel (Tianjin) Co., Ltd., we also offer two different finishes on our 26 & 28 gauge galvanized steel sheet & coils.


Just let us know the end use of your product and we can help you find the material that is right for you.


Typical Galvanized Steel Sheets & Coil Applications:

· Exterior building products

· Ductwork

· HVAC products

· Flashing

· Electrical boxes and other electrical products

· Roofing

· Doors

· Sashes

· Automotive parts

· Appliances

· Commercial and residential steel framing

· Parking lots

· Truss plates

· Metal building purlins

· Any other products requiring a corrosion resistant material


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