Properties
- Structure
The basic structure of aluminized steel is a thin aluminum oxide layer outside, then an intermetallic layer that is a mix of aluminum, silicon, and steel, and finally a steel core. Aluminized Steel is highly resistant to corrosion and shows high levels of heat reflectivity.
Crystal Structure
Aluminum has a Face Centered Cubic crystal structure.
- Heat Reflectivity
Both Type 1 and Type 2 show excellent high reflectivity characteristics. At temperatures up to 842°C(1,548°F), aluminized steel reflects up to 80% of heat projected onto it. Aluminized steel has the ability to maintain its strength at temperatures up to 677°C(1,250°F). Although stainless steel is the stronger of the two, aluminized steel has a greater electrostatic surface, and can therefore reflect heat better.
- Corrosiveness of Aluminized Steel
Aluminized Steel is highly resistant to corrosion because of the thin layers of aluminum and silicon, which keep the underlying steel from oxidizing. These thin layers also keep pit corrosion from occurring, especially during exposure to salts that affect most other metals. However, despite the good corrosion resistance of aluminized steel, if the aluminum layer is disrupted and the steel is exposed, then the steel may oxidize and corrosion may occur.
Read more about this topic: Aluminized Steel
Famous quotes containing the word properties:
“The reason why men enter into society, is the preservation of their property; and the end why they choose and authorize a legislative, is, that there may be laws made, and rules set, as guards and fences to the properties of all the members of the society: to limit the power, and moderate the dominion, of every part and member of the society.”
—John Locke (1632–1704)
“A drop of water has the properties of the sea, but cannot exhibit a storm. There is beauty of a concert, as well as of a flute; strength of a host, as well as of a hero.”
—Ralph Waldo Emerson (1803–1882)