Aluminized Magnesium Zinc Steel Coil

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Zinc-aluminum-magnesium coated steel coil, also known as ZAM coated steel coil, is an innovative steel finish with superior corrosion resistance. Initially, pure zinc alloys were mostly used to enhance the corrosion resistance of metal surfaces. With the continuous innovation of steelmaking technology, corrosion-resistant coated steels such as zinc-aluminum alloys and ZAM alloys continue to emerge on the market, which greatly enhances the corrosion resistance of steel surfaces.

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Aluminized Magnesium Zinc Steel Coil Composition And Classification

Zinc-aluminum-magnesium coated steel coil refers to a coated steel in which a certain amount of Al, Mg is added to the existing hot-dip galvanized coating or a certain amount of Mg is added to the hot-dip galvanized coating. It has high performance of corrosion resistance and high trimming protection.

A generalized analysis of magnesium-containing coated steel for commercial applications shows that the Mg content in most coatings is less than or equal to 3%. Hence, according to the aluminum content of the coatings, the zinc-aluminum-magnesium coatings can be divided into the following types:

1.Low-aluminum Zn-Al-Mg coating, with aluminum content of 1-3.5%: This coating is formed by adding a certain amount of aluminum-magnesium and other elements on the basis of hot-dip galvanizing. The coated steel plate has also been tested in a color coating unit, and low-aluminum zinc-aluminum-magnesium plate has also been successfully developed. The coating is an upgraded version of the corrosion resistance of the hot-dip pure zinc coating, which is referred as BZM coated steel plate and its color coated plate.

2.Medium-aluminum Zn-Al-Mg coating, with aluminum content of 5~11%.

3.High-aluminum Zn-Al-Mg coating, with aluminum content of 55%. The coating is formed by adding certain magnesium and other elements on the basis of hot-dip aluminum-zinc. The coated steel plate has also been tested in a color coating unit, and the color coated steel plate with a high-aluminum zinc-aluminum-magnesium substrate has been successfully developed. This coating is an upgraded version of the corrosion resistance of the hot-dip aluminum-zinc coating, which is referred to as BAM coated steel sheet and its color coated sheet.

Aluminized Magnesium Zinc Steel Coil Parameters

Technical Standard	EN10147, EN10142, DIN 17162, JIS G3302, ASTM A653
Steel Grade	Dx51D, Dx52D, Dx53D, DX54D, S220GD, S250GD, S280GD, S350GD, S350GD, S550GD; SGCC, SGHC, SGCH, SGH340, SGH400, SGH440, SGH490, SGH540, SGCD1, SGCD2, SGCD3, SGC340, SGC340 , SGC490, SGC570; SQ CR22 (230), SQ CR22 (255), SQ CR40 (275), SQ CR50 (340), SQ CR80(550), CQ, FS, DDS, EDDS, SQ CR33 (230), SQ CR37 (255), SQCR40 (275), SQ CR50 (340), SQ CR80 (550); or Customer's Requirement
Type	Coil/Sheet/Plate/Strip
Thickness	0.12-6.00mm,or customer's requirement
Width	600mm-1500mm, according to customer's requirement
Zinc Coating	30-275g/m2
Surface Treatment	Passivation(C), Oiling(O), Lacquer sealing(L), Phosphating(P), Untreated(U)
Surface Structure	Normal spangle coating(NS), minimized spangle coating(MS), spangle-free(FS)
Coil Weight	3-20 metric ton per coil
Package	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

Aluminized Magnesium Zinc Steel Coil Advantage

Corrosion resistance, self - repair, environmental protection, long life, easy processing.

The alloy coating of galvanized aluminum magnesium steel plate is made of zinc (Zn), aluminum (Al), magnesium (Mg) after high temperature curing to form a dense ternary eutectic structure, so that the surface of the steel plate to form a layer of dense, effective corrosion prevention super coating.

Excellent corrosion resistance: In the case of the same coating is 5-10 times of the ordinary hot dip galvanized steel plate.

self-healing abilities: The cutting end face of Zinc-aluminum-magnesium steel plate and around the punching incision will be dissolved with the passage of time, forming a dense protective film composed of zinc hydroxide, acid zinc chloride and magnesium hydroxide. This protective film has low electrical conductivity and has obvious inhibitory effect on the corrosion of the section.

Excellent workability and damage resistance:Because zinc, aluminum and magnesium coating is very dense, smooth, coating surface hardness is 2.5 times that of ordinary galvanized, so that it has excellent tensile, stamping, bending, welding and other processing properties and excellent scratch resistance and wear resistance.

The environmental protection:Zinc, aluminum and magnesium surface treatment does not contain three, six valent Ming and other heavy metal ions, in line with international environmental protection (ROHS), is currently internationally recognized environmental products, in the field of environmental protection favored.

Aluminized Magnesium Zinc Steel Coil Application:

Automatic breeding equipment, Fan, Photovoltaic bracket, Pipe gallery bracket, Thin-walled light steel structure chicken house, Pig house, Electrical cabinet, etc

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