Differences Between Aluminizing and Aluminized Steel Plate
Overview
Aluminized steel plate, also called aluminizing plate or hot-dip aluminized plate, is coated with an aluminum-silicon alloy. The coating contains 90% aluminum and 10% silicon.
Key Properties
- Heat Resistance: The iron-aluminum alloy layer enhances high-temperature resistance.
- Maintains high reflectivity at 450°C.
- Turns gray above 480°C but remains intact.
- Resists oxidation up to 650°C without shedding.
- Heat Reflectivity: Reflects 80% of heat at 480°C, improving thermal efficiency.
- Mechanical Strength: Matches base steel strength at room temperature. At 480°C, it is 10 times stronger than aluminum sheets, allowing thinner material use.
- Corrosion Resistance: The Al2O3 protective layer prevents rust and self-heals when scratched.
- Eco-Friendly: Safe for food processing and fully recyclable.
Cost Efficiency
Aluminized steel offers stainless steel-like performance at one-third of the cost.
Applications
- Automotive: Mufflers, exhaust pipes, and fuel tanks.
- Industrial: Furnaces, heat exchangers, and dryers.
- Household: Water heaters, gas stoves, and microwaves.
- Construction: Roofs, walls, ceilings, and insulation.
Processing & Versatility
- Welded using standard MAG and TIG methods.
- Supports forming techniques like stretching, stamping, and tube drawing.
- Offers durable gloss, corrosion resistance, and weather resistance.
Comparison to Galvanized Steel
Aluminized steel withstands higher temperatures, making it ideal for heat-intensive environments.
