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AZ55 Galvalume Steel Coil Galvanized Surface Selection

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.

 

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%

 

  • Galvanized Surface Selection

AZ55 Galvalume Steel Coil

 

Type of Coating

Recommended Coating Weight

Aluminum-zinc Alloy

30/40/50/60/75/90/100/150

A: Coating quality50g/㎡,approximately equal to the coating thickness13.3pm

 

Project

Classification

Symbol

Type of Coating

Aluminum-zinc Alloy

AZ

Surface Finish

Conventional Sequins

R

Minimize Sequins

M

Skin Through

S

Surface Treatment

Chromate Passivation

c

Non-chromate Passivation

C5

Chromate Passivationoiling

CO

Chromium-free Passivationoiling

CO5

Anti-fingerprint

N

Chromate-free/Anti-fingerprint

N5

No chromate high weather resistance fingerprint

NW

Oil filling

0

No treatment

U

 

  • Material Comparison

Chinese Standard

European Standards

American Standard

Japanese Standard

DC51D+AZ

DX51D+AZ

CS Type B, Type C

SGLCC

DC52D+AZ

DX52D+AZ

DS

SGLCD

S250GD+AZ

S250GD+AZ

255

-

S300GD+AZ

-

-

-

S350GD+AZ

S350GD+AZ

345

Class1 SGLC490

S550GD+AZ

S550GD+AZ

550

SGLC570

 

GNEE STEEL supplied carbon steel, stainless steel, galvanized steel, aluminum, copper alloys and so on. Our experienced employee, engaged in strict quality control and careful customer service, is ready to discuss your requirements and ensure the full satisfaction of customers.

 

AZ55 Galvalume Steel Coil