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GL Coil

GL Coil Supplier in China

Galvalume Steel Coil, also called GL coil, Al-Zn coated steel coil, or galvalume sheet coil, is a steel coil coated with an aluminum-zinc alloy layer. The coating commonly contains aluminum, zinc, and silicon, providing excellent corrosion resistance, heat reflectivity, and surface durability for roofing, wall panels, appliances, prepainted steel substrates, and construction projects.

As a Galvalume Steel Coil and GL Coil stockist and supplier, SKSteel supplies galvalume steel coil and sheet with full sizes available, multiple steel grades, stable Al-Zn coating, different surface treatments, mill test certificates, slitting and cut-to-length service, and fast delivery worldwide.

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Type of Galvalume Steel Coil / GL Coil SKSteel can supply

DX51D+AZ Galvalume Steel Coil
Free quotation
SGLCC GL Coil
Free quotation
ASTM A792 Galvalume Coil
Free quotation
AZ50 Galvalume Coil
Free quotation
AZ100 Galvalume Coil
Free quotation
AZ150 Galvalume Coil
Free quotation
Regular Spangle GL Coil
Free quotation
Anti-Fingerprint GL Coil
Free quotation
Cut-to-Length Galvalume Sheet
Free quotation
Item Description
Product Galvalume Steel Coil / GL Coil / Al-Zn Coated Steel Coil
Standard ASTM A792, JIS G3321, EN10346, AS1397, GB/T 14978 or Customized
Steel Grade DX51D+AZ, DX52D+AZ, SGLCC, SGLCD, G550, CS Type A/B/C or Customized
Production Method Hot-Dip Al-Zn Alloy Coated
Thickness 0.12mm-4.0mm or Customized
Width 600mm-1500mm or Customized
Coating AZ30-AZ200, AZ50-AZ150 or Customized
Coating Composition Aluminum-Zinc Alloy Coating, commonly Al-Zn-Si
Spangle Regular Spangle, Small Spangle or Customized
Surface Treatment Chromated, Oiled, Unoiled, Anti-Fingerprint, Passivated or Customized
Coil Weight 3-12MT or Customized
Processing Slitting, Cut-to-Length, Leveling, Shearing Available
Packing Standard Export Packing or Customized
Certificate MTC EN10204 3.1 Available
For other specifications and customization requirements, please contact our professional sales team.

Chemical composition varies according to the selected base steel grade and standard. The following table is a common reference for carbon steel galvalume steel coil materials.

Element Content (%)
C According to steel grade requirement
Si According to steel grade requirement
Mn According to steel grade requirement
P Controlled by applicable standard
S Controlled by applicable standard
Property Value
Yield Strength According to grade and standard
Tensile Strength According to grade and standard
Elongation According to grade and standard
Formability According to grade and application requirement
Coating Adhesion Tested according to project or standard requirements
Heat Reflectivity According to coating and application requirement
Surface Quality According to selected spangle and surface treatment

Applications

With outstanding heat and corrosion resistance, our GL sheets are the ideal base material for construction, appliances, and industrial parts.
Building Envelopes
Home Appliances
Automotive
Industrial/Agriculture

Challenges & Needs

What is the key challenge in choosing GL sheets for harsh environments? SK STEEL provides total peace of mind.

Unstable Corrosion Resistance

Concerns over improper Al-Zn ratios leading to premature oxidation in humid conditions.

Coating Cracking during Processing

Stamping or bending risks that shorten service life.

Uneven Surface Treatment

Inconsistent anti-fingerprint layers affecting finished product aesthetics.

Our Supply Solutions

To meet your anti-corrosion needs, we maintain a strict quality loop from raw material ratios to coating consistency, ensuring every GL sheet stays stable in extreme conditions. We also use professional surface passivation to ensure the highest oxidation resistance upon arrival.
We integrate services like shearing, stamping, and cold forming so your steel arrives ready for immediate production. This eliminates secondary processing risks, saving you significant time and preparation costs.
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WHY CHOOSE SKSTEEL FOR GALVALUME STEEL COIL / GL COIL?

  • Large Ready Stock
  • Full Thickness, Width, and Al-Zn Coating Range Available
  • Competitive Export Pricing
  • Multiple Steel Grades Available
  • Slitting and Cut-to-Length Service Available Mill Test Certificates Available
  • Mill Test Certificates Available
  • Fast Global Delivery
  • Professional Export Support
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Value-Added Services

We offer more than just Galvanized steel sheets; we provide full-chain value-added services to eliminate hurdles in your downstream manufacturing and logistics.

Deep Pre-processing

Custom laser cutting, shearing, and bending from your blueprints.

Surface Enhancement

Blasting, cleaning, and painting for better protection and looks.

End-to-End Tracking

Real-time tracking and customs help to ensure on-time delivery.

Smart Logistics

Optimized container loading to save space and costs.

Collaboration with SK STEEL

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FAQ for Steel Supply Services

Professional Export Support

Galvalume Steel Coil is a steel coil coated with an aluminum-zinc alloy layer to improve corrosion resistance, heat reflectivity, and surface durability. It is commonly supplied in coil form and can be processed into galvalume sheets, roofing sheets, and formed parts.

SKSteel can supply DX51D+AZ, DX52D+AZ, SGLCC, SGLCD, G550, ASTM A792 CS Type A/B/C and other customized galvalume steel grades according to project requirements.

Common Al-Zn coating includes AZ30, AZ50, AZ70, AZ100, AZ120, AZ150 and higher coating weights according to project requirements. Customized coating can also be supplied.

Yes. SKSteel can provide slitting, leveling, shearing, and cut-to-length galvalume sheet service according to customer size and packing requirements.

Can SKSteel supply anti-fingerprint Galvalume Steel Coil?

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