PPGI CR3 CR4 DX51D+ZM Cold Rolled Steel Zinc Aluminum Magnesium Coated Steel Coil Zn-Al-Mg Alloys Metal Sheet for roofing
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Product Description


Product description:

Zinc-aluminum-magnesium-coated steel sheets refer to coated steel sheets in which a certain amount of Al and Mg is added to the existing hot-dip galvanized coating or a certain amount of Mg is added to the hot-dip galvanized aluminum-zinc coating. It has high corrosion resistance and high functional edge protection performance. Published laboratory accelerated tests, outdoor exposure tests and other results show that increasing the content of Al and Mg within a certain range can increase the corrosion resistance by several to more than ten times. Another major advantage of adding Mg to the coating is that it improves the corrosion resistance of the cut edge of the steel plate. Magnesium-containing zinc-based corrosion products will cover the cutting surface, thereby protecting the cutting. Usage: building roofs, walls, agricultural livestock, home appliances, automobiles, color coating substrates, etc.


Application:

Building roofs, walls, electrical cabinets, home appliances, automobiles, color-coated substrates, etc.


Product specification:

Thicknessmm

0.3-2.0

Widthmm

750-1320

Metal Plating

AZM60-AZM275

Steel coil weight (tons)

5-8

Strength

G250/G280/G300/G320/G345/G350/G550/DX51D/DX52D/DX53D


Mechanical
 property:

Product Name

Brand

Yield Strength/Mpa

Tensile Strength/Mpa

Elongation after break/%

Low carbon steel

DX51D+AZM/ZM

≤360

≤440

≥20

DX52D+AZM/ZM

≤260

300-360

≥28

Interstitial atomic steel

DX53D+AZM/ZM

≤200

270-320

≥38

DX54D+AZM/ZM

≤180

270-310

≥40

Structural Steel

S250GD+AZM/ZM

≥250

≥330

≥19

S350GD+AZM/ZM

≥350

≥420

≥16

S450GD+AZM/ZM

≥450

≥510

≥14

S550GD+AZM/ZM

≥550

≥560

/

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