Zincalume Steel Is a Zinc/Aluminium Alloy Coated Steel for Roof and Wall Caldding System

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Product Description

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Basic Specifications
Model NO.
GL/Galvalume steel coil(sheet)
Certification
ISO, RoHS, IBR, TUV/UL/RoHS
Surface Treatment
Galvanized/Galvalume/Zn Al Mg
Technique
Cold Rolled
Application
Building, Construction, Roofing
Edge
Slit edge
Grade
DC51D to SGCC, S550GD
Thickness
0.12mm - 2.0mm
Width
500mm - 1550mm
Zinc Coating
40G/M2 - 275G/M2
Spangle Type
Regular/Small/Zero Spangle
Production Cap.
16000t+/Month
Product Description
Aluminium-zinc coating (AZ) 55% Zinc Coated is applied by dipping steel into a bath of molten metal consisting of 55% aluminium and 1.6% silicon. This combination ensures superior corrosion protection compared to standard coatings.
Key Advantages:
  • Strong corrosion resistance: 3 times higher than galvanized steel coil.
  • Better coverage: Due to lower density, the area of galvalume sheet is 3% larger than galvanized sheet at the same weight and thickness.
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Technical Parameters
Product TypeGalvalume steel coil cold rolled / GL for roofing & wall construction
StandardBS4449, GB1449.2, JIS G3112, ASTM A615, AS/NZS 4671
Surface TreatmentChromated/Non-Chromated, Oiled/Non Oiled, Skin pass
Coil Weight3-8 Tons
Processing ServiceWelding, Punching, Cutting, Bending, Decoiling
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Capability & Quality
With an annual sales volume exceeding 300,000 tons, our professional supply system serves customers worldwide. We have over 20 years of industry experience, specializing in the design, manufacture, and supply of premium steel products for roofing, automotive, and construction fields.
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Materials & Innovation
Galvalume combines steel, aluminum, and zinc using a hot-dipped process (55% Al, 43.4% Zn, and 1.6% Si). This process provides a sacrificial metal coating that protects the base metal from oxidation with superior durability.
Product Range
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Frequently Asked Questions
What are the standard payment terms?
We generally prefer 30% TT before inspection and the remaining 70% against the Bill of Lading (BL). Other negotiable terms are also available.
Is sample service available?
Yes, we provide free samples to our clients and typically cover the shipping costs for the samples to ensure quality satisfaction.
Can products be customized to specific requirements?
Absolutely. Our expert equipment and highly-trained workers are capable of manufacturing highly customized steel products to meet your unique specifications.
What types of steel materials do you supply?
We supply all grades of steel and stainless steel products, including coils, strips, sheets, pipes, bars, and beams. Specialized coatings like Tin, Ti, and Galvanization are also available.
How is the corrosion resistance of Galvalume compared to Galvanized steel?
Galvalume offers approximately two to four times better corrosion resistance than traditional galvanized steel due to its 55% aluminum content.
Are you a certified supplier?
Yes, we operate under a strict quality policy with proprietary procedures and hold ISO9001:2015 registration. Customers are welcome to visit our facilities.

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