Galvalume Steel Corrugated Roof Sheet

SKU: HC-1142144458064728064

Galvalume steel corrugated roof sheet is made of galvanized steel sheet used for roofing and coated with zinc. The zinc coating provides moisture and oxygen protection for the base steel. According to the galvanizing process, it can be divided into hot-dip galvanized steel plate and electro-galvanized steel plate. The corrugated design improves its strength and enable it to withstand harsh weather conditions.

Testing & Certification

Key Features

  • Third-Party Inspection Support
  • Sufficient Inventory Supply
  • International Standard Certification
  • Custom Processing Service

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Product Description

Galvalume steel corrugated roof sheet is made of galvanized steel sheet used for roofing and coated with zinc. The zinc coating provides moisture and oxygen protection for the base steel. According to the galvanizing process, it can be divided into hot-dip galvanized steel plate and electro-galvanized steel plate. The corrugated design improves its strength and enable it to withstand harsh weather conditions. Galvalume s teel c orrugated r oof s heet has designs of wavy, trapezoidal designs, ribbed galvanized roof panels, etc. It can be used as a single-layer board, covering an existing roof, or a steel sandwich panel. Galvalume sheet itself is more cost-effective than traditional roofing materials. In addition, it is light in weight and easy and quick to install. In addition, it is durable and recyclable and requires less maintenance. All these factors make g alvalume s teel c orrugated r oof s heet an economical choice. It h a s a bright and smooth surface. The corrugated design is also excellent from the outside. In addition, it has good adhesion, so you can paint it in different colors. Having a g alvalume steel roof makes it easy to achieve aesthetic purposes. Superior Corrosion Resistance The aluminum layer makes the aluminized zinc steel have excellent corrosion resistance. When the zinc wears, the aluminum will form a dense aluminum oxide layer, preventing the corrosion-resistant substance from further corroding the interior. Therefore, the corrosion resistance of GL plate is 3 times that of galvanized plate. Under the same circumstances, the service life of GL roof panels is 2-6 times that of GI roof panels. High Thermal Reflectivity Its reflection coefficient is twice that of galvanized metal roof panels, which can reduce the indoor temperature in summer and reduce the power consumption of air conditioning. This feature makes it ideal for hot climates. High Temperature Resistance GL roofing sheet has good heat resistance and can withstand high temperatures above 300 degrees. Therefore, it can be used for a long time at high temperature. Smooth Surface, Uniform Appearance The aluminized zinc roof panels are smooth, silvery white with uniform sequins. It looks beautiful and can be used directly. Therefore, it is widely used for commercial and residential purposes. Good Formability And Adhesion The adhesion between the GL coating and the paint is good and easy to paint. In addition, it also has excellent formability. That is, punching, cutting, and

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 CoatingAl: 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-

Galvanized Surface Selection

Zero SpangleMinimized SpangleNormal SpangleLarge Spangle
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
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