Aluminized zinc color steel coil

Aluminized zinc-coated steel coils can be understood as coils made of "aluminized zinc-coated steel sheets + color coating," and are often simply referred to as color-coated aluminized zinc-coated steel sheets. It is a metal material widely used in construction, home appliances, and industrial manufacturing.

Its structure can generally be summarized as follows: Steel substrate → Aluminized zinc coating → Chemical treatment layer → Primer → Topcoat (color coating)

Why is it called "aluminized zinc-coated color steel coil"?

Aluminized zinc-coated color steel coil has an aluminum-zinc alloy coating applied to the surface of a steel sheet. A common ratio is approximately:

• Aluminum (Al): 55%
• Zinc (Zn): 43.4%
• Silicon (Si): 1.6%

This coating combines:

• The corrosion resistance of aluminum: improving oxidation resistance.
• The sacrificial anode protection of zinc: protecting the steel substrate in the event of localized damage.
• Good heat resistance: more suitable for high-temperature environments than ordinary galvanized sheets.

What are the differences between it and ordinary galvanized color steel coil?

Advantages of aluminized zinc-coated steel coils

1. Excellent Corrosion Resistance

• 55% aluminum provides excellent barrier protection.
• Zinc provides cathodic protection (sacrificial anode).
• Silicon helps improve coating stability.
• Generally, corrosion resistance is 2-4 times that of ordinary galvanized steel sheets.

  

  （JXL STEEL uses raw materials for high-quality galvanized steel coils.）

2. Longer Service Life

•  Maintains good performance for a long time under normal conditions.
• Particularly suitable for coastal areas, high humidity areas, and industrial environments.
• Effectively reduces later maintenance and replacement costs.

3.Excellent Heat Resistance

• Can be used for extended periods in high-temperature environments.
• Good oxidation resistance, not easily losing protective properties due to high temperatures.
• Suitable for roofing, industrial plants, and high-temperature equipment enclosures.

4. Good Reflectivity

• High aluminum content results in high solar heat reflectivity.
• Helps reduce building heat absorption and improve energy efficiency.
• Suitable for factory, warehouse, and large building roofs.

5. Aesthetically Pleasing Appearance

• Rich colors, customizable according to RAL color charts.

Customized Cases

• We can apply a PVC protective film to the surface according to your needs. This is called coated color steel sheet, which protects the delicate paint surface of the color steel sheet during processing.

  

• We can emboss patterns onto the smooth surface of galvanized color steel sheets according to your needs. This is called embossed color steel sheet, and it comes in diamond and orange peel shapes. We can also customize it to your specific shape.

Why Choose JXL STEEL

• Superior Materials – We use premium galvanized steel sheets with a durable coating to ensure a long service life.
• Customization Options – We offer a variety of colors, thicknesses, and coating types to meet your project needs.
• Strict Quality Control – Each roll of steel undergoes comprehensive testing (coating, adhesion, corrosion, mechanical properties).
• Competitive Pricing – Excellent value for money without compromising quality.
• On-Time Delivery – An efficient production and logistics system ensures timely delivery.
• Technical Support – We provide professional guidance on product selection, installation, and maintenance.

                                    (JXL Steel production line)

Quality Inspection

• We first conduct a visual inspection to ensure the galvanized color steel coils are free of defects, facilitating subsequent processing and aesthetic use.
• Coating Performance Testing: We use a magnetic thickness gauge or coating thickness gauge to test the paint film thickness, ensuring it meets the customer's required thickness. JXL STEEL can produce paint films with a thickness of 25 microns on both the front and back sides. After testing, we sequentially conduct adhesion, bending performance, hardness, and impact resistance tests to ensure the paint does not crack or peel during customer use, and the product is fully qualified.
• Corrosion Resistance Testing: We will conduct salt spray tests to ensure that the color remains vibrant even in harsh operating environments.
• Substrate Mechanical Property Testing

  Project	Method	Common requirements
  Yield strength	tensile test	190~350 MPa
  Tensive strength	tensile test	270~450 MPa
  Elongation	tensile test	≥20%
  Bending performance	bending test	Bending diameter as specified by thickness
  Stamping performance	stamping test	No cracks

  （The data table above is taken from the test data of the DX51D grade. If you have any special requirements, please contact us.）

  

  

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  We have set up a sun exposure testing ground outside our factory, where some samples have been stored for over 10 years, yet they still look brand new and have vibrant colors.
• A third party is conducting an independent inspection of our products.

Export Cases

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• We receive a large number of foreign visitors every day, and they all give high praise and recognition to the color steel coils produced by our company.

Shipping site

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• Whether you choose container shipping or bulk cargo shipping, JXL STEEL guarantees that the products delivered to your factory will be intact and undamaged.