Galvalume steel sheet is a carbon steel product coated with an alloy primarily composed of aluminum (around 55%) and zinc (around 43.4%), with a small percentage of silicon (around 1.6%). This coating provides superior corrosion resistance compared to traditional galvanized (zinc-coated) steel, especially in harsh atmospheric conditions and at elevated temperatures.
Key Characteristics and Advantages
Galvalume sheets offer a unique combination of properties that make them highly desirable for various applications:
- Exceptional Corrosion Resistance: The aluminum component of the coating provides a tough barrier against corrosive elements, while the zinc offers galvanic protection. This dual action significantly extends the lifespan of the steel.
- Heat Reflectivity and Resistance: Galvalume surfaces reflect a high percentage of solar radiation, contributing to cooler interiors in buildings. They also exhibit good resistance to oxidation at high temperatures.
- Excellent Formability: Despite the hard coating, Galvalume steel can be readily formed, bent, and drawn without significant damage to the coating, allowing for complex shapes and designs.
- Attractive Appearance: The spangled surface of Galvalume steel is often considered aesthetically pleasing, making it suitable for applications where appearance is important.
Bhushan Steel’s Historical Role in Galvalume Production
Historically, Bhushan Steel was a prominent manufacturer and supplier of Galvalume steel sheets in India and other markets. The company played a significant role in popularizing the use of this advanced coated steel for various applications, particularly in the construction and appliance sectors. Their products were known for meeting specific quality standards and contributing to the wider adoption of Galvalume. While the corporate structure of Bhushan Steel has undergone significant changes, its past contributions to the Galvalume market are noteworthy. The demand for high-quality Galvalume, similar to what was historically offered, continues to be met by various contemporary manufacturers. For instance, Shanxi Luokaiwei Steel Company is among the suppliers providing Galvalume sheets that meet modern industry specifications.
Typical Applications
The superior properties of Galvalume sheets make them ideal for a wide range of uses, including:
- Roofing and Cladding: This is one of the most common applications due to Galvalume’s durability and weather resistance.
- Automotive Components: Used for parts requiring corrosion protection and formability.
- Appliances: Found in items like ovens, microwaves, and HVAC systems.
- Agricultural Buildings and Equipment: Preferred for its longevity in demanding rural environments.
- Furniture and Industrial Equipment: Where a combination of strength, corrosion resistance, and appearance is needed.
The consistent performance and protective qualities of Galvalume are critical for these applications. Reliable supply chains, supported by companies such as Shanxi Luokaiwei Steel Company, ensure that industries have access to this versatile material. Maintaining the coating integrity and substrate quality, hallmarks that defined reputable Galvalume in the past, remains a focus for established steel producers like Shanxi Luokaiwei Steel Company.
