Galvalume Steel Coil With Superior Corrosion Protection

-- Steady & Reliable Manufacturer --

Brief Description

Our Galvalume Steel Coil (GL) is a premium coated steel product that combines the corrosion resistance of aluminum with the sacrificial protection of zinc. The coating, composed of approximately 55% aluminum, 43.4% zinc, and 1.6% silicon, provides superior protection against corrosion compared to traditional galvanized steel. This innovative alloy coating offers exceptional resistance to atmospheric corrosion, high-temperature oxidation, and edge creep, making it ideal for demanding outdoor applications.

Galvalume steel is widely recognized for its excellent performance in roofing, wall cladding, and other architectural applications. The unique aluminum-zinc coating creates a protective barrier that is both durable and aesthetically pleasing, with a distinctive spangled surface that can be left unpainted or used as an excellent substrate for prepainted products. Our Galvalume coils are manufactured to strict quality standards, ensuring consistent coating weight, excellent adhesion, and superior formability.

Technical Specifications

PropertyDetails
Base MetalCold Rolled Steel (CR)
StandardASTM A792, JIS G3321, EN 10346
GradeDX51D+AZ, DX52D+AZ, DX53D+AZ, S250GD+AZ, S280GD+AZ, S320GD+AZ, S350GD+AZ
Thickness Range0.15mm - 2.5mm
Width Range600mm - 1500mm
Coating Weight (AZ)50g/m² - 185g/m² (AZ50 - AZ185)
Coating Composition55% Aluminum, 43.4% Zinc, 1.6% Silicon
Surface FinishRegular spangle or minimized spangle
Surface TreatmentChromated, oiled/unoiled, or passivated
Coil ID508mm / 610mm
Coil Weight3 - 15 Metric Tons

Applications

  • Architectural Roofing Systems
  • Exterior Wall Cladding and Facades
  • Agricultural Buildings and Silos
  • Industrial Plant Roofs
  • Gutters and Downspouts
  • Substrate for Prepainted Products (PPGL)

Key Advantages

  • Superior Corrosion Resistance
  • Excellent High-Temperature Performance
  • Superior Edge Creep Resistance
  • Excellent Heat Reflectivity
  • Long Service Life
  • Cost-Effective Protection
  • Attractive Spangled Appearance

Payment & Shipping

  • Payment Terms: 30% T/T in advance + 70% T/T against B/L copy, or Irrevocable L/C at sight
  • Trade Terms: FOB, CFR, CIF
  • Packaging: Standard sea-worthy export packaging with anti-rust paper, plastic film, and galvanized steel outer cover
  • Shipping: 20-foot or 40-foot containers, delivery 30-45 days after order confirmation

Frequently Asked Questions

  • Q: What is the difference between Galvalume and Galvanized steel?
  • A: Galvalume uses an aluminum-zinc alloy coating (55% Al, 43.4% Zn) while Galvanized uses pure zinc coating. Galvalume offers superior corrosion resistance, heat reflectivity, and edge creep resistance, while Galvanized provides better edge protection through galvanic action.
  • Q: Can Galvalume steel be used in coastal environments?
  • A: Yes. Galvalume steel performs well in coastal environments due to its superior corrosion resistance. For extremely aggressive coastal conditions, we recommend higher coating weights or PVDF coating.
  • Q: Can Galvalume steel be painted?
  • A: Yes. Galvalume steel is an excellent substrate for painting. Our prepainted Galvalume (PPGL) products offer superior adhesion and durability for architectural applications.
About Aoguan
Zhejiang Aoguan Thin Steel Technology Co., Ltd.

Aoguan Thin Steel Group specializes in the production and sales of color-coated steel coils (PPGI and PPGL), focusing on integrated manufacturing and direct sales. As Wholesale Galvalume Steel Coil With Superior Corrosion Protection Manufacturers and China Galvalume Steel Coil With Superior Corrosion Protection Factory, we serve markets in Southeast Asia, Africa, the Middle East, and South America. With headquarters in Chuan Sha, Shanghai, and factories in Zhejiang, Jiangsu, and Anhui, we are committed to delivering high-quality products to clients worldwide.
Our color-coated steel coils offer stunning hues and exceptional visual effects, creating endless market opportunities and potential for growth. With our commitment to quality and innovation, success is within reach, and we look forward to collaborating with partners from all sectors to build a brighter future together!

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  • Zhejiang Aoguan Thin Steel Technology Co., Ltd.

    Tel

    +86-15021696188

  • Zhejiang Aoguan Thin Steel Technology Co., Ltd.

    Email

    aoguanthinsteel@agtst.com

  • Zhejiang Aoguan Thin Steel Technology Co., Ltd.

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    +86-18221988088

  • Zhejiang Aoguan Thin Steel Technology Co., Ltd.

    Address

    No. 166, South Baigongqiao Road, Economic and Technological Development Zone, Nanhu District, Jiaxing City, Zhejiang Province, China