AZ55 Galvalume Steel Coil

Galvalume coil is a kind of aluminum-plated zinc alloy treatment method to form a coil with high strength, excellent corrosion resistance and beautiful appearance on the surface of steel, with high corrosion resistance and air pollution resistance. Galvalume coil also has good surface decoration, and can be processed into a variety of beautiful building and home appliance materials.

// Product  Description //

Galvalume coil is a kind of aluminum-plated zinc alloy treatment method to form a coil with high strength, excellent corrosion resistance and beautiful appearance on the surface of steel, with high corrosion resistance and air pollution resistance. Galvalume coil also has good surface decoration, and can be processed into a variety of beautiful building and home appliance materials.


The production process of aluminum zinc plating is as follows:

Uncoiling-cleaning-annealing-zinc pot-cooling-air knife-straightening-post-treatment-coiling

Heat Reflection

People use it as a thermal insulation material, and its thermal reflectivity is up to twice that of galvanized steel.

Heat Resistance

Galvanized steel coil has good heat resistance and can withstand high temperatures above 300°C, which is very similar to the oxidation resistance of aluminized steel at high temperatures. Commonly used in chimney tubes, ovens, illuminators, fluorescent lampshades, etc.

Corrosion Resistance

The key to the corrosion resistance of aluminized zinc steel coil is the protective performance of aluminum. Once the zinc is worn, the aluminum forms a dense layer of aluminum oxide, preventing further internal corrosion.

Economy

The density of 55% AL-Zn is smaller than that of Zn. Therefore, when the coating weight and thickness are the same, the area of the aluminum-zinc plated steel sheet is 3% larger than that of the galvanized steel sheet.

Easy to Paint

The coating material on the aluminized zinc steel plate has excellent adhesion, and can be directly coated with tar on advertising boards and common plates without pretreatment such as weathering.


Galvanized Coil.jpg


Product Parameters

Product Name

Galvalume Steel Coil

Thickness

0.12mm-3.00mm

Width

600mm-1500mm

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

-



Use of The Environment

Recommended Zinc Thickness

Indoor Use

AZ30 or AZ185 (30g/㎡or 185g/㎡)

Suburbs

AZ30 and Painting (30g/㎡)

Urban or Industrial Area

AZ185 (185g/㎡) 

Coastal Area

Thicker than AZ185 (185g/㎡) 

Punch or Deep Drawing Application

Thicker than AZ185 (185grams/㎡)



Surface Treatment Type

Code

Features

Chromic Acid Treatment

C

Good corrosion resistance, suitable for bare state

Chromic Acid Treatment+Oiling

S

Good corrosion resistance

Phosphoric Acid Treatment (Including Sealing Treatment)

P

Have a certain corrosion resistance, good paint performance

Phosphoric Acid Treatment (Including Sealing Treatment)+Oiling

Q

Has a certain corrosion resistance, good paint performance, prevent rust during transportation and storage

Phosphoric Acid Treatment (Excluding Sealing Treatment)

T

Have a certain corrosion resistance, good paint performance

Phosphoric Acid Treatment (Excluding Sealing Treatment)+Oiling

V

Has a certain corrosion resistance, good paint performance, and prevent rust

Oiling

O

Prevent rust during transportation and storage

No Treatment

M

Suitable for immediate painting


Material Comparison

Chinese StandardEuropean StandardsAmerican StandardJapanese Standard
DC51D+AZDX51D+AZCS Type B, Type CSGLCC
DC52D+AZDX52D+AZDSSGLCD
S250GD+AZS250GD+AZ255-
S300GD+AZ---
S350GD+AZS350GD+AZ345Class1 SGLC490
S550GD+AZS550GD+AZ550SGLC570



// Request a Free Estimate //

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You can also use our quick contact form to ask a question about our products.

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// Industry Applications //

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.

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// Certificate qualification //

Every certificate is a testament to jinggong's commitment; every recognition carries the trust of our clients and the industry. We cherish these honors, and see them as the responsibility and driving force for our continued progress.

  • 京工证书)
  • 10001(1)
  • 10001(2)
  • 10001(3)
  • 10001(4)

// Partners //

Our products have established long- term cooperative relationships with many well-known domestic and international companies.Currently, our products are exported to regions such as the Middle East,South America, Southeast Asia,and Africa,and have gained unanimous recognition from customers both at home and abroad.

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  • 20581743_121943837695_2

TESTIMONIALS

The warehouse steel structure project in Texas, USA, used only ASTM A36 carbon steel from Jinggong. Its mechanical properties are stable, the material certification documents are complete, and the project supervisor approved it on the first attempt, saving us significant time and costs.

Jane Doe

Jane Doe

Carbon Steel Field

"The outdoor scaffolding systems of power plants along the Southeast Asian coast are exposed to high salt spray environments year-round. Jinggong's galvanized steel has a uniform and dense coating, and its salt spray test results far exceeded expectations. After three years of inspections, no red rust was found on any of the substrates, demonstrating its convincing corrosion resistance."

John Smith

John Smith

Galvanized Steel Sector

"Our heavy mining machinery frames require extremely high-strength steel. Jinggong supplies S355J2 steel according to the European standard EN 10025-2, which has excellent impact toughness and performs robustly under extreme loads, greatly improving equipment safety."

Sarah Wilson

Sarah Wilson

Steel Section

"Before cooperating with Jinggong, we were worried about whether Chinese steel could consistently meet JIS standards. In fact, every batch of SPHC cold-rolled coils they provided had chemical composition and mechanical property data that were completely consistent with the certificate. This rigor gave us complete peace of mind."

Michael Brown

Michael Brown

Cold-Rolled Coil

"Our newly built logistics warehouse in Canada uses PPGI from Jinggong for both the roof and wall panels. The product not only meets CSA standards, but its unique weather-resistant coating design also allows the building to maintain its excellent appearance and performance under extreme cold and sun exposure."

Emily Davis

Emily Davis

Color-Coated Steel Sheets

"From the initial carbon steel trial order to the current comprehensive cooperation on stainless steel, galvanized steel, and color-coated steel sheets, Jinggong has proven its strength with consistently stable quality and professional service. They are not only suppliers of materials, but also our reliable partners in solving material technology problems."

Robert Johnson

Robert Johnson

Aluminized Zinc Steel

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