Gnee Steel (tianjin) Co., Ltd
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AZ55 Galvalume Steel Coil

Sep 17, 2025

AZ55 Galvalume Steel Coil

 

AZ55 is the standard for galvanized steel sheets and coils used in a variety of applications, including roofing and siding. The AZ55 name refers to the thickness of the coating on the steel plate or coil, which is between 0.375 and 1.5mm (0.015 and 0.059 inches).

AZ55 aluminum zinc plated steel coil is coated with 55% aluminum zinc alloy by hot dip plating process. It has excellent corrosion resistance and can be used in various applications, such as the automotive industry, shipbuilding industry, construction industry, etc. In addition to being an excellent outdoor material, AZ55 aluminized zinc steel coil also has many other advantages. For example, it can be used for electrical equipment manufacturing or decoration, such as fences. In addition to these uses, this steel can also be used in various industrial applications because of its good mechanical properties and corrosion resistance.

 

  • Scope of Application

Construction industry: such as roof, internal and external wall panels, sound insulation walls, pipes, garages, etc.
Automotive industry: such as mufflers, exhaust pipes, wiper accessories, fuel tanks, truck containers, etc.
Household appliances: such as refrigerator backplane, air conditioner, microwave oven, LED backlight, electric cabinet, etc
Agricultural use: such as greenhouse, granary, pig farm, chicken coop, etc
Other industries: such as heat exchangers, dryers, etc.

 

  • Product Parameters

Product Name

AZ55 Galvalume Steel Coil

Thickness

0.12mm-6.00mm

Width

600mm-1500mm

Length

1m-12m, Support Customization

Standard

AISI, ASTM, DIN, JIS, GB, JIS, SUS, EN, etc.

Thickness of Aluminum Zinc Coating

30-185g/m²

Content of Al-Zn Coating

Al: 55%, Zn: 43.5%, Si: 1.5%

 

  • Chemical Composition

Al

Zn

Si

Fe

Cu

Cd

Pb

Sn

Ni

Close Cr

55-58

41-43

1.5-2

0.25

0.03

0.05

0.01

0.05

0.05

0.05

 

  • Mechanical Properties

Grade

Yield Strength MPa≥

Tensile Strength MPa≥

Elongation A%≥

DX51D Z/ZM/AZ/AM

240-380

270-500

22

DX52D Z/ZM/AZ/AM

140-300

270-420

26

DX53D Z/ZM/AZ/AM

140-260

270-380

30

DX54D Z/ZM/AZ/AM

120-220

260-350

36

S220GD Z/ZM/AM

220

300

20

S250GD Z/ZM/AZ/AM

250

330

19

S280GD Z/ZM/AM

280

360

18

S300GD A/AM

300

380

18

S320GD Z/ZM/AM

320

390

17

S350GD Z/ZM/AZ/AM

350

420

16

S450GD A/AM

450

480

15

S550GD Z/ZM/AZ/AM

550

550

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AZ55 Galvalume Steel Coil