AZ120 Stone Coated Tiles Galvalume Steel Villa Roof

55% Aluzinc Steel Coil Roof Panels Commercial Steel Quality DX51D

1. Brief Introduction

Hot-dip aluminum-zinc coated steel plate is a pre-coated steel sheet created by hot-dip plating a layer of Al-Zn coating on both sides of a cold-rolled steel plate of varying strengths and thicknesses. The coating layer consists of 55% aluminum, 43.5% zinc, and 1.5% silicon by mass. This combination offers the physical protection and high durability of aluminum along with the electrochemical protection of zinc. The material retains the strength and plasticity of the base steel while providing excellent corrosion resistance from the coating. Additionally, the surface features a highly decorative bright silver-grey color with a regular embossed pattern.

2. Differences Between Aluzinc Steel Coil and Galvanized Steel Coil

• Composition and Coating

- Aluzinc Steel Coil:

- Coating: Aluzinc steel coil is coated with an alloy composed of approximately 55% aluminum, 43.4% zinc, and 1.6% silicon.

- Appearance: This composition gives Aluzinc steel a distinctive, spangled silver appearance.

- Properties: The aluminum in the coating provides enhanced barrier protection, while zinc offers sacrificial protection, combining the benefits of both metals.

- Galvanized Steel Coil:

- Coating: Galvanized steel coil is coated with pure zinc or a zinc alloy.

- Appearance: It typically has a shiny, spangled finish.

- Properties: The zinc coating primarily offers sacrificial protection, where the zinc layer corrodes before the steel substrate.

• Corrosion Resistance

- Aluzinc Steel Coil:

- Superior Resistance: The aluminum content significantly improves the corrosion resistance, especially in environments exposed to high humidity or corrosive elements.

- Longevity: The combination of aluminum and zinc provides up to four times more corrosion resistance compared to galvanized steel.

- Galvanized Steel Coil:

- Moderate Resistance: While effective, galvanized steel generally offers lower corrosion resistance than Aluzinc, making it suitable for less demanding environments.

• Heat Resistance

- Aluzinc Steel Coil:

- High Temperature Tolerance: Aluzinc steel can withstand higher temperatures, making it ideal for applications involving heat, such as roofing in hot climates.

- Galvanized Steel Coil:

- Lower Temperature Tolerance: The zinc coating can degrade at high temperatures, making it less suitable for high-heat applications.

• Aesthetic Qualities

- Aluzinc Steel Coil:

- Enhanced Aesthetics: The spangled silver appearance of Aluzinc steel is often preferred for architectural applications due to its modern look.

- Galvanized Steel Coil:

- Traditional Appearance: It has a more traditional, shiny appearance, which might be less desirable in certain aesthetic applications.

3. Environments Where Aluzinc Steel Coil is Superior

Marine and Coastal Areas

- Saltwater Exposure: Aluzinc steel's superior corrosion resistance makes it ideal for structures near the sea or in marine environments where salt spray and humidity are prevalent.

Industrial Environments

- Chemical Exposure: Industrial environments that release corrosive chemicals benefit from the enhanced protective qualities of Aluzinc steel, ensuring longer life and reduced maintenance.

High Humidity and Rainfall Areas

- Moisture Resistance: In regions with high humidity and frequent rainfall, Aluzinc steel offers better protection against rust and corrosion, making it suitable for roofing, cladding, and other exposed applications.

High Temperature Applications

- Heat Resistance: For applications involving high temperatures, such as industrial roofs or heat exchangers, Aluzinc steel maintains its structural integrity and appearance better than galvanized steel.

4. Conclusion

While both Aluzinc and galvanized steel coils have their unique advantages, Aluzinc steel coils excel in environments requiring superior corrosion and heat resistance. Their composition makes them ideal for demanding applications, ensuring durability, reduced maintenance, and aesthetic appeal. Galvanized steel coils, on the other hand, are suitable for less demanding environments where cost efficiency and traditional appearance are prioritized.

5. Detailed Parameters:

1) Standard: ASTM A792M, AS1397, EN10346/ EN10143 all according to the customer's request
2) Grade: SGCC, CS-Type B, Grade 350, G550, Grade 50, Grade 80, SS550GD, all according to the customer's request

3) Capacity: about 20000 tons per month

4) Thickness: from 0.13mm to 2mm, all available
5) Width: from 600mm to 1250mm, regular size:750-762mm,900-914mm,1000mm,1200mm,1219-1250mm all available
6) Coil ID: 508mm
7) Coil weight: from 2-10MT, according to the customer's request

8) Zinc coating weight: AZ30~AZ165g/m2

9) Spangle: regular spangle,big spangle, small spangle
10) Surface treatment: Anti-finger print (Green, Blue, Golden, No color) Chemical passivating, oils, passivating oils,skin passed
11) Edge: mill edge, cut edge
12) Min trial order 25 ton each thickness

Application:

Export Package

Shandong Decho Building Materials Technology Co., Ltd (hereafter called “DBM” ) is a professional manufacturer and exporting company of coated steel coils and sheets, with over 13 years of experience in steel industry and 11 years of steel mill work experience, with extensive product knowledge and experience in production process, especially for the supply of coated steel coils with a stable and reliable supply chain of manufacturers and logistics.

DBM is always in pursuit of and committed to providing high quality products and services. Our company has professional quality inspection team members, for each batch of orders can be fully on-site testing and provide test reports, can also accept any third-party testing company on-site testing, we can do is to ensure that each order goods delivered to a high standard, to achieve customer satisfaction, to achieve win-win cooperation.

DBM can meet the need to use colour steel plate as raw material for building. Decho Building Materials colour steel plate is mainly processed into, for example, colour steel corrugated board or colour steel composite sandwich board after our colour steel plate is widely used in the construction of airports, freezers, steel plants, warehouses, and other industrial buildings and commercial buildings, such as the roof of the colour steel tiles, colour steel plate sandwich walls and doors.

DBM only focus on high standard coated coils with warranty service, We are your strict gatekeeper and faithful partner in China import , We always been committed to becoming your long-term reliable supplier in China.