AZ55 Galvalume Steel Sheet

AZ55 Galvalume Steel Sheet

Through electrolytic galvanizing, a uniform and dense zinc layer is finally formed on the surface of the steel, but the mechanical properties of the material are still maintained. Electrogalvanized steel is usually sold in coil or sheet form. EG coil is a kind of material that can be cut, slitted and profiled for other purposes. The steel grade of galvanized steel consists of base metal grade, galvanized (E), galvanized layer type and weight. The electro-galvanized products based on SPCC, SPCD, SPCE, SPCF and SPCG are named SECC, SECD, SECE, SECF and SECG respectively.

Product  Description

Galvalume Steel Sheet Description

Through electrolytic galvanizing, a uniform and dense zinc layer is finally formed on the surface of the steel, but the mechanical properties of the material are still maintained. Electrogalvanized steel is usually sold in coil or sheet form. EG coil is a kind of material that can be cut, slitted and profiled for other purposes. The steel grade of galvanized steel consists of base metal grade, galvanized (E), galvanized layer type and weight. The electro-galvanized products based on SPCC, SPCD, SPCE, SPCF and SPCG are named SECC, SECD, SECE, SECF and SECG respectively.


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 sheet.jpg


Product Parameters

Product NameGalvalume Steel Sheet
Thickness0.12mm-6.00mm
Width600mm-1500mm
Length1m-12m, Support Customization
StandardAISI, ASTM, DIN, JIS, GB, JIS, SUS, EN, etc.
Thickness of Aluminum Zinc Coating30-185g/m²
Content of Al-Zn Coating Al: 55%, Zn: 43.5%, Si: 1.5%


Chemical Composition

AlZnSiFeCuCdPbSnNiClose Cr
55-5841-431.5-20.250.030.050.010.050.050.05


Mechanical Properties

GradeYield Strength MPa≥Tensile Strength MPa≥Elongation A%≥
DX51D Z/ZM/AZ/AM240-380270-50022
DX52D Z/ZM/AZ/AM140-300270-42026
DX53D Z/ZM/AZ/AM140-260270-38030
DX54D Z/ZM/AZ/AM120-220260-35036
S220GD Z/ZM/AM22030020
S250GD Z/ZM/AZ/AM25033019
S280GD Z/ZM/AM28036018
S300GD A/AM30038018
S320GD Z/ZM/AM32039017
S350GD Z/ZM/AZ/AM35042016
S450GD A/AM45048015
S550GD Z/ZM/AZ/AM550550-

Type of CoatingRecommended Coating Weight
Aluminum-zinc Alloy30/40/50/60/75/90/100/150
A: Coating quality50g/㎡,approximately equal to the coating thickness13.3pm


ProjectClassificationSymbol
Type of CoatingAluminum-zinc AlloyAZ
Surface FinishConventional SequinsR
Minimize SequinsM
Skin ThroughS
Surface TreatmentChromate Passivationc
Non-chromate PassivationC5
Chromate PassivationoilingCO
Chromium-free PassivationoilingCO5
Anti-fingerprintN
Chromate-free/Anti-fingerprintN5
No chromate high weather resistance fingerprintNW
Oil filling0
No treatmentU


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


Professional Showcase · Safe Shipping

In the shipping process, we strictly adhere to standardized operating procedures: we employ customized packaging solutions that are moisture-proof, scratch-proof, and deformation-proof, and each batch of products is reinforced according to international shipping standards. Whether it's full container export or domestic dedicated truck delivery, we achieve end-to-end visualized management from warehousing, packaging, labeling to logistics tracking, ensuring that goods are delivered safely and on time to customers worldwide.

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