Hot-Dip Galvanfan / Galvalume Steel Suppliers
Hot dip galvanizing and galvalume are two different processes used to protect steel from corrosion. They involve applying a protective coating to steel to prevent it from rusting and corroding.
Hot-dip Galvanfan / Galvalume Steel Coils Available Specification
Hot-Dip Galvanfan / Galvalume Steel Coils (Al-Zn Coated)
Galfan (5% Al-Zn Coated Steel) | Galvalume(55% Al-Zn Coated Steel) | ||||||||||||||||
Specific- cations | JIS G3317 1994 | ASTM A875M 2002 | JIS G3321 1998 | ASTM A792M 2003 | EN 10215 2000 | ||||||||||||
SZAHC SAZH 340 400 440 | SZACC SZAC 340 400 440 | SZACD1 | Comm- erical Steel Type A B C | Forming Steel Type A B C | DDS | Struc- tural Steel Grade 230 255 275 340 | Struc- tural Steel Grade 550 | SGLCC SGL 400 440 490 570 | SGLCD | CS Type A B C FS | DS | SS Grade 230 255 275 345 550 | DX51D | DX52D DX53D | S220GD S250GD S280GD S320GD S350GD | S550GD | |
Thickness of Base Steel (mm) | 1.50 | 4.50 | 0.23 | 2.00 | 0.40 | 1.25 | 0.23 | 0.40 | 1.25 | 0.23 | 4.50 | 0.23 | 2.00 | 0.20 | 1.38 | 0.30 | 1.25 | 0.20 | 1.38 | 0.30 | 1.25 | 0.20 | 1.38 | 0.20 | 1.38 | 0.30 | 1.25 | 0.20 | 1.38 | 0.23 | 1.25 | |
Coating Mass | Y08, Y10, Y12, Y18, Y20, Y22, Y25, Y27, Y35 | ZGF90, ZGF135, ZGF180, ZGF225 ZGF275, ZGF350 | AZ90, AZ120 AZ150,AZ170 | AZ150, AZ165, AZ180 | AZ100, AZ150, AZ185 | ||||||||||||
Surface Finish | Regular Spangle, Minimized Spangle | Regular Spangle | |||||||||||||||
Surface Treatment | Chromating Treatment, Oiled or Resin Coated (Anti Finger Print) | ||||||||||||||||
Remarks | 1. Tolerance for thickness, width, flatness and so on… can conform to the individual product specification. 2.All products with a thickness 2.0mm and under can be skin-passed. 3. The specification for thicknesses under 1.6mm for hot-rolled base metal according to JIS G3302 will be the same as for thicknesses 1.6mm and over. 4.Coil inside diameters can be either 508mm or 610mm, maximum coil outside diameter is 2000mm. The weight of a single coil can be from 5 to 25 metric tons. 5. don’t hesitate to get in touch with Huaxiao Metal for Special specifications. 6.The specification of ASTM such as A653M, A792M, A875M / A924M and etc. have been updated to the latest revisions. | ||||||||||||||||
Hot-Dip Galvalume Steel Coils (55% Al-Zn Coated)
Width: 600~1300mm
Hot-Dip Galvafan Steel Coils (5% Al-Zn Coated)
Width: 70~1280mm
About Hot-dip Galvanfan / Galvalume Steel(GL)
Hot-dip galvanization is a process where steel is coated with a layer of zinc to protect it from corrosion. The process involves immersing the steel in a bath of molten zinc, which creates a metallurgical bond between the zinc and the steel. This results in a durable, rust-resistant coating.
The key features of hot-dip galvanization are:
Corrosion Resistance: Galvanized steel is highly resistant to corrosion and can withstand exposure to the elements, making it suitable for outdoor applications.
Longevity: Galvanized coatings can provide long-term protection to steel structures, and they have a relatively low maintenance requirement.
Appearance: Galvanized steel has a characteristic silver-gray appearance.
Common Uses: Galvanized steel is used in various industries, including construction, automotive, agriculture, and more.
Galvalume is a trademarked name for a type of steel coating that combines zinc and aluminum. Unlike hot-dip galvanization, which uses only zinc, Galvalume coatings consist of approximately 55% aluminum, 43.5% zinc, and 1.5% silicon by weight.
The key features of Galvalume are:
Enhanced Corrosion Resistance: Galvalume offers improved corrosion resistance compared to traditional galvanized steel, especially in harsh environments.
Heat Resistance: Galvalume-coated steel can withstand high temperatures, making it suitable for applications where heat resistance is essential.
Appearance: Galvalume-coated steel typically has a shiny, metallic appearance.
Common Uses: Galvalume is commonly used in roofing and siding materials for residential, commercial, and industrial buildings due to its corrosion resistance and heat reflectivity.
Galvalume and galvanized steel are both used to protect steel from corrosion, but they have different coatings and characteristics. Here are the main differences between Galvalume and galvanized steel:
Composition:
- Galvalume: Galvalume is a trademarked name for a type of steel coating that combines zinc, aluminum, and silicon. It typically consists of approximately 55% aluminum, 43.5% zinc, and 1.5% silicon by weight.
- Galvanized Steel: Galvanized steel is coated with a layer of pure zinc.
Corrosion Resistance:
- Galvalume: Galvalume offers enhanced corrosion resistance compared to traditional galvanized steel. The combination of aluminum and zinc provides better protection, especially in harsh environments and corrosive conditions.
- Galvanized Steel: Galvanized steel also provides good corrosion resistance but may not perform as well as Galvalume in certain environments, such as areas with high humidity, salt exposure, or acidic conditions.
Durability:
- Galvalume: Galvalume-coated steel tends to be more durable and longer-lasting than galvanized steel, especially in challenging outdoor applications.
- Galvanized Steel: Galvanized steel provides adequate durability but may require more frequent maintenance and recoating in severe conditions.
Heat Resistance:
- Galvalume: Galvalume-coated steel can withstand high temperatures, making it suitable for applications where heat resistance is important.
- Galvanized Steel: Galvanized steel can also tolerate moderate temperatures but may not perform as well as Galvalume in high-temperature environments.
Appearance:
- Galvalume: Galvalume-coated steel typically has a shiny, metallic appearance.
- Galvanized Steel: Galvanized steel has a characteristic silver-gray appearance.
Common Uses:
- Galvalume: Galvalume is commonly used in roofing and siding materials for residential, commercial, and industrial buildings due to its superior corrosion resistance and heat reflectivity.
- Galvanized Steel: Galvanized steel is used in various industries, including construction, automotive, agriculture, and more. It is suitable for applications where corrosion resistance is required but not to the same extent as in severe coastal or industrial environments.
The choice between Galvalume and galvanized steel depends on the specific application, environmental conditions, and budget. Galvalume is often preferred in areas with high humidity, salt exposure, or acidic conditions, while galvanized steel can be suitable for many outdoor and industrial applications. Consider factors such as cost, appearance, and performance requirements when selecting the appropriate coating for your project.
Both hot-dip galvanization and Galvalume provide effective corrosion protection for steel, but the choice between them depends on the specific application and environmental conditions. Galvalume may be preferred in areas with high humidity, salt exposure, or acidic conditions, while hot-dip galvanized steel can be suitable for many outdoor and industrial applications. The selection also considers factors such as cost, appearance, and performance requirements.
