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Benefits of Coated Steel

What are the Benefits of Coated Steel?

Looking for an effective and economical way to protect your steel from outside elements? Read below to learn more about the benefits of coated steel.

What is Steel Coated With?

Steel is coated with zinc to help prevent corrosion. Zinc forms a barrier, defending the metal itself from rust and other forms of corrosion. Zinc reacts with oxygen when exposed to the atmosphere, thus creating zinc oxide. Furthermore, the zinc oxide reacts with carbon dioxide to firm a zinc carbonate. This stops further corrosion in most circumstances, safeguarding the steel from the element, particularly in areas with extreme exposure to saltwater.

How is Steel Coated?

Alliance Steel carries a wide variety of coated steel sheets and coil products, including hot-dipped and, electro galvanized, aluminized, galvannealed, and galvalume.

Hot Dipped Galvanized Steel: The process starts with submerging the carbon steel (hot roll or cold roll substrate) into a hot bath (680 degrees F) of zinc. As the steel cools, an iron- zinc alloy bond occurs, creating a spangled finish.

Electro Galvanized Steel: The zinc coating is applied to the steel by the process of electro-deposition. This process can apply a protective coating to one of both sides of the steel. 

Aluminized Steel: Aluminized Steel is coated with an aluminum-silicon alloy. This is applied during a hot-dipped process, like Hot Dipped Galvanized. Aluminized Steel is heat resistant and has a bright surface.

Galvannealed Steel: Zinc is applied to this material using a hot-dipped process, and then the steel is annealed. This converts the zinc into a zinc – alloy, providing a coated product that offers increased protection from corrosion and scratches. 

Galvalume Steel: Galvalume is coated in an aluminum-zinc alloy using a continuous process.

What are the Benefits of Zinc Coatings?

Corrosion Resistance: The most beneficial trait of coated steel is its effectiveness in protecting against oxidation. 

Efficiency: Zinc Coatings protect the base metal from corrosion and will sacrifice itself to save the underlying material.

What are some Coated Steel Uses?

Industries that use coated steel sheets and coils are:

  • Agriculture
  • Appliance
  • Automotive
  • Cabinetry  
  • Construction
  • Energy
  • Engine Components
  • Exterior Building Features such as Roof Decking, Partitions, Covers and Cabinets
  • Household Appliances
  • Outdoor Recreation
  • Pipe and Tubular
  • Residential and Commercial Heating, Ventilation and Air-Conditioning Systems
  • Roofing
  • Siding

Alliance Steel is a flat roll and coil processing - steel service center in Gary, Indiana. We have been a leader in flat-roll steel supply and coil processing for over 20 years. In May of 2020, we relocated to Gary, Indiana, strategically placing ourselves near major highways, mills, and ports. There are also two sales locations in the Mid- South (Atlanta and Memphis).

Our temperature-controlled 300,000 square foot facility is equipped with full rail service, multiple slitters, including a heavy-gauge line, numerous fiber lasers, multi–blanking, cut to length, stretcher leveling, and metallurgical capabilities.

Alliance Steel is prepared to support your steel needs with an extensive inventory of flat-rolled sheet and coil products.

We maintain a selection of hot rolled steel, hot rolled pickled and oiled, hot rolled pickled dry, cold-rolled steel, motor lam, all coated products steel products. For more information, please call 219-427-5400 or send us a contact form.