55% Aluzinc Steel Roof Panels DX51D ASTM A792M S280GD​ Galvalume Steel Coil​

• Introduction:

55% Aluzinc steel coils, also known as Galvalume or Aluminium-Zinc alloy coated steel, are a type of steel coated with an alloy comprising approximately 55% aluminum, 43.4% zinc, and 1.6% silicon. This unique coating provides a combination of the excellent corrosion resistance of aluminum and the galvanic protection of zinc, making it a superior material for various applications.

Composition:

- Aluminum (55%): Provides exceptional corrosion resistance by forming a protective layer of aluminum oxide.

- Zinc (43.4%): Offers sacrificial protection, similar to traditional galvanized steel, protecting the steel substrate by corroding preferentially.

- Silicon (1.6%): Enhances adhesion of the coating to the steel and helps maintain the integrity of the alloy layer during fabrication.

• Advantages of Galvalume Steel Compared to Galvanized Steel

When comparing lightweight steel keels, one must consider the differences in scratch resistance and durability between galvanized and aluminium-zinc plated steel.

Material Requirements

The home appliance industry has specific requirements for aluminium-zinc coated steel to ensure it meets the necessary standards for performance and durability. These requirements include:

1. Composition:

- Typically, the coating consists of 55% aluminium, 43.4% zinc, and 1.6% silicon. This composition offers a balanced combination of protection and durability.

2. Thickness:

- The thickness of the aluminium-zinc coating can vary depending on the application, but it generally ranges from 30 to 150 grams per square meter.

3. Base Steel:

- The base steel used is usually low-carbon steel, which provides a good balance of strength and formability.

• Applications in Home Appliances

1. Refrigerators:

- Aluminium-zinc coated steel is used for both the outer and inner panels of refrigerators, providing a clean, modern look and excellent corrosion resistance.

2. Washing Machines:

- The outer casing and drum of washing machines benefit from the material’s corrosion resistance and formability, ensuring longevity and durability.

3. Microwave Ovens:

- The reflective and heat-resistant properties make it ideal for the inner and outer panels of microwave ovens.

4. Air Conditioners:

- Used in the casing and some internal components, offering protection against harsh outdoor environments and enhancing energy efficiency.

5. Dishwashers:

- The corrosion-resistant properties protect against the high humidity and detergent exposure inside dishwashers.

6. Ovens and Stoves:

- The material’s heat resistance and durability are perfect for oven and stove exteriors and certain internal components.

• Specifications:

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

• Detailed Parameters:

• 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.