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Aluzinc Steel Coils
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| Place of Origin | CHINA |
| Brand Name | DBM |
| Certification | ISO9001, SGS, BV |
| Model Number | ASTM A792M |
Aluzinc steel coil, also known as aluminium-zinc coated steel, is a type of steel product that features a coating made from an aluminium-zinc alloy. This coating typically consists of 55% aluminium, 43.4% zinc, and 1.6% silicon. The combination of these metals in the coating provides the steel with enhanced properties, making it suitable for various industrial and construction applications.
|
Surface Treatment |
Description |
Advantages |
Disadvantages |
|---|---|---|---|
|
Chromated |
A layer of chromate coating is applied. |
- Excellent corrosion resistance- Enhanced paint adhesion |
- Contains hexavalent chromium (environmental concerns)- Requires additional safety measures |
|
Non-Chromated |
Uses alternative chemicals to provide corrosion resistance. |
- Environmentally friendly- Good corrosion resistance |
- May have slightly lower corrosion resistance than chromated |
|
Oiled |
A thin layer of oil is applied to the surface. |
- Temporary corrosion protection- Facilitates further processing |
- Needs to be removed before painting or further coating |
|
Dry |
No additional surface treatment after the coating process. |
- Cost-effective- Ready for immediate use in some applications |
- Limited corrosion protection |
|
Anti-Fingerprint |
Special coating to prevent fingerprint marks and smudges. |
- Maintains aesthetic appearance- Provides additional corrosion protection |
- May increase production cost |
|
Phosphated |
A phosphate conversion coating is applied to enhance adhesion. |
- Excellent paint adhesion- Additional corrosion resistance |
- Additional processing step- Environmental considerations for disposal |
|
Passivated |
A passivation layer is applied to enhance corrosion resistance. |
- Good initial corrosion resistance- Cost-effective |
- May not be as effective as chromated coatings in harsh environments |
|
Painted/Pre-painted |
A layer of paint is applied over the Aluzinc coating. |
- Aesthetic flexibility- Enhanced corrosion protection |
- Higher production cost- Paint may degrade over time |
|
Category |
Details |
|---|---|
| Thickness Range | 0.14 mm - 2.00 mm |
| Width Range | 600 mm - 1500 mm |
| Coil Weight | Up to 25 tons |
| Coil Inner Diameter | 508 mm / 610 mm |
| Coating Composition | 55% Aluminum, 43.4% Zinc, 1.6% Silicon |
| Coating Weight | AZ50 - AZ200 (50 g/m² - 200 g/m²) |
| Surface Finish | Regular Spangle, Mini Spangle, Zero Spangle |
| Surface Treatment | Chromated, Non-Chromated, Oiled, Dry, Anti-fingerprint |
| Mechanical Properties | |
| - Yield Strength | 300 - 550 MPa |
| - Tensile Strength | 300 - 600 MPa |
| - Elongation | 10% - 30% (depending on grade) |
| Spangle | Regular, Minimised, Zero |
| Coil Length | Custom lengths based on customer requirements |
| Standard Compliance | ASTM A792, JIS G3321, EN 10346 |
| Applications | Roofing, Siding, HVAC, Appliances, Automotive, Agricultural Equipment, Industrial Components |
1. Construction:
- Roofing and wall panels
- Gutters and downspouts
- Steel framing and structural supports
- Siding and cladding materials
2. Automotive:
- Body panels
- Underbody components
- Heat shields and exhaust systems
3. Appliances:
- Housings for washing machines, dryers, and refrigerators
- Microwave oven panels and components
4. Agricultural Equipment:
- Silos and grain bins
- Farm machinery and equipment panels
5. Industrial:
- Air conditioning and heating ducts
- Electrical cabinets and enclosures
- Furniture and storage systems
Summary:
55% Aluzinc steel coils are a versatile and durable material known for their superior corrosion resistance, heat resistance, and aesthetic appeal. These coils are used in various industries, including construction, automotive, appliances, agriculture, and industrial applications, providing long-lasting performance and protection.
When exporting aluminized zinc-coated steel coils, the packaging is crucial to ensure the material arrives in good condition. The packaging generally follows these steps:
1. Inner Packaging:
- Plastic or VCI (Volatile Corrosion Inhibitor) Paper: The coil is first wrapped in plastic or VCI paper to protect against moisture and corrosion during transit.
- Waterproof Paper: A layer of waterproof paper is often added over the VCI paper for additional moisture protection.
2. Outer Packaging:
- Metal Strapping: Several metal straps are used to secure the coil tightly. These straps are often made of steel to provide the necessary strength.
- Edge Protectors: Edge protectors are placed at the coil edges where the metal strapping is applied to prevent damage during handling.
- Steel or Aluminum Cover: An outer layer of steel or aluminum is wrapped around the coil for impact resistance.
- Palletization: If required, the coil can be placed on a wooden or steel pallet. This makes it easier to handle with forklifts and other lifting equipment.
3. Markings and Labeling:
- Identification Labels: Each coil is labeled with relevant information such as grade, weight, dimensions, and destination.
- Export Markings: The package might also include export-specific markings, such as handling instructions, port of discharge, and consignee details.
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