PPGI/PPGL Hot Dipped Galvanised Steel Coils hot dip zinc coated steel

PPGI/PPGL Hot Dipped Galvanised Steel Coils hot dip zinc coated steel

Galvanized Steel Coil Introduction

Hot dipped galvanized steel sheet & coil is made of carbon steel coated in zinc utilizing the hot-dip process. The end result of this process is a layer of zinc on each side of the steel sheet or coil that is tightly adhered to the steel through the formation of an iron-zinc alloy bonding layer. This bonding layer is formed by a diffusion process while the heated steel is in contact with molten zinc. We can provide hot-dipped galvanized steel sheets & coil to meet your ASTM requirements with customer-driven surface finish options. 

GI Coils Parameters

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 in areas not covered with zinc. Thus, the spread of corrosion from cut edges, drill holes, etc. is minimized.

Shandong Fulilai Steel Group 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.

Advantages of Galvanized Steel 

The main advantage of galvanized steel is its corrosion resistance. The zinc coating serves as a barrier between the steel and the environment and will sacrifice itself in order to protect the underlying steel; Meaning the zinc will degrade much sooner than the steel itself. Additionally, it offers good processability and formability.

It has strong corrosion resistance. It can prevent the surface of the steel plate from being corroded and prolong its service life. And the hot-dip galvanized coil looks clean, more beautiful, and adds decorativeness.

Advantages: The surface has strong anti-oxidation ability, which can strengthen the anti-corrosion penetration ability of parts.

Hot dipped galvanized steel sheet & coil is made of carbon steel coated in zinc utilizing the hot-dip process. The end result of this process is a layer of zinc on each side of the steel sheet or coil that is tightly adhered to the steel through the formation of an iron-zinc alloy bonding layer. This bonding layer is formed by a diffusion process while the heated steel is in contact with molten zinc. Chesterfield can provide hot-dipped galvanized steel sheets & coil to meet your ASTM requirements with customer-driven surface finish options.

Applications of GI Sheet&Coils

Hot-dip galvanized coils are mainly used in air conditioners, refrigerators and other industries.
For example, the back panel of the indoor unit of the air conditioner, the back panel of the cabinet, the inner parts, the outer casing and the interior of the outdoor unit are all made of galvanized sheet. The working environment of these parts will encounter strong oxidizing conditions such as rain, sun exposure, and warm gas corrosion, so hot-dip galvanized coils are often used.

• Exterior building products
• Ductwork
• HVAC products
• Flashing
• Electrical boxes and other electrical products
• Roofing
• Doors
• Garage doors
• Sashes
• Safety fencing
• Automotive parts
• Appliances
• Commercial and residential steel framing
• Parking lots
• Truss plates
• Metal building purlins