Galvannealed Steel Coil
Product Name: Galvannealed Steel Coil/Sheet/Strip/Plate; GA Steel
Standard: AISI, ASTM, BS, DIN, GB, JIS
Thickness: 0.12-6.0 mm
Width: 600-1500 mm
Zinc Coating: 30-275/m2
Length: As customer’s requirements
Surface Treatment: Dark/Bright/Black Annealed
Hardness: Full Hard/Semi Hard/Soft
|Coil Weight||3-20 ton/coil|
|Monthly production||3000-10000 tons|
|MOQ(Minimum order quantity)||20 tons|
|Delivery time||Stock: 7 days|
Futures: 15-35 days
|Packaging||Water proof paper is inner packing,galvanized steel or coated steel sheet is outer packing , side guard plate,then wrapped by seven steel belt.or according to customer’s requirement|
North America, etc
Galvannealed steel(alloy hot-dip galvanized steel) is a new type of coated steel material. It is formed by heating and diffusion treatment in an alloy furnace after the hot-dip galvanized strip is drawn from the zinc pot and before the zinc layer is solidified. After alloying the hot-dip galvanized sheet, the outer pure zinc layer has been completely transformed into an iron-zinc alloy layer with an iron content of 7-13%, and its surface has lost its inherent zinc.
Advantages of Galvanneal Steel
There are advantages to using Galvannealed steel over uncoated steel or other coated materials. Galvanneal is primarily designed to be painted. The matte finish of the zinc coating is much more absorbent than standard galvanized steel which allows paints to adhere to the surface far better. Galvannealed steel also has a zinc coating that is harder than many other types of galvanized steels. This increases its resistance to scratching and other types of coating damage that could expose the steel underneath to the environment. The formability and weldability of the Galvanneal coating is typically better than other types of galvanized steel. Using Galvanneal will also provide much better corrosion resistance than uncoated carbon steels.
Applications of Galvannealed Steel
Galvannealing can be performed on steels that are meant for forming, deep drawing, high-tensile stress applications, marine applications, welding operations, and many other activities.