Galvalume Coil

Aluminum-galvanized coil refers to a color ste​el plate made of zinc as the matrix, aluminum as the surface coating, and cold-rolled or hot-rolled on the zinc surface. Aluminum-galvanized coil has the characteristics of high-quality appearance effect, high corrosion resistance, easy processing and installation, so it has been widely used in the construction industry

◉ Product Details

ProductAluminum zinc steel coil
StandardASTM, JIS, GB
Thickness0.13-2.0mm
Width20mm-2600mm
CoatingAZ30-AZ180
Spangle TypeRegular Spangle
Surface treatmentChromated / Anti-finger print
Aluminium Content0.55
ApplicationConstruction
Processing serviceWelding, Punching, Cutting, Bending, Decoiling
MOQ25 ton (1x20GP)
Packagesstandard package

 Chemical composition

AlZnSiFeCuCdPbSnNiTi +Ba+Cr
55-5841-431.5-20.250.030.050.010.050.050.05

 Mechanical behavior

gradeYield strength, MPaTensile strength of MPaelongation 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+AZ/AM30038018
S320GD+Z/ZM/AM32039017
S350GD+Z/ZM/AZ/AM35042016
S450GD+AZ/AM45048015
S550GD+Z/ZM/AZ/AM550550－

 Galvanized surface options

Coating typeRecommended coating weight
Aluminum zinc alloy30/40/50/60/75/90/100/150
A: The coating mass is 50g/㎡, which is approximately equal to the coating thickness of 13.3pm.


Project Classification Symbol 
Coating typeAluminum zinc alloyAZ
Surface finishregular sequinsR
Minimize sequinsM
Skin passS
Surface treatmentChromate passivationc
Non-chromate passivationC5
Chromate passivation + oilingCO
Chrome-free passivation + oilingCO5
Anti-fingerprintN
Chromate-free anti-fingerprintN5
Chromate-free,highly weather-resistant and anti-fingerprintNW
Oiling0
No treatmentU

 Material comparison

Chinese standardEuropean standardAmerican standardJapanese standard
DC51D+AZDX51D+AZCS Type B, Type CSGLCC
DC52D+AZDX52D+AZDSSGLCD
S250GD+AZS250GD+AZ255-
S300GD+AZ---
S350GD+AZS350GD+AZ345Class1 SGLC490
S550GD+AZS550GD+AZ550SGLC570


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