The Differences Between Stainless Steel and Aluminized Steel

At Block Steel, we supply clients across the country with high-quality aluminized steel and stainless steel that we can cut to your precise specifications, so it’s ready to go upon delivery. Stainless and aluminized steel both have their pros and cons, so it’s important to know the difference between the two. Here are five significant ways in which stainless and aluminized steel differ for your applications.

Steel Composition

The first significant difference between the two is in the composition of the steel. Aluminized steel is a carbon steel that features an aluminum-silicon coating that resists corrosion while also strengthening the steel for high-temperature environments. Stainless steel has a different composition, being made from iron, chromium, and in most cases nickel. Stainless steel is resistant to rust and oxidation because of the chromium content.

Corrosion Resistance

These two types of steel also differ in terms of corrosion resistance. Aluminized steel offers protection to intense heat, although it can be more vulnerable to moisture and highly corrosive environments if the coating has been damaged. Stainless steel is much more durable, especially in marine or acidic conditions.

Resistance to Heat

Aluminized steel is preferred for things like automotive exhaust systems and ovens that are exposed to high temperatures because of the reflective aluminum coating. Stainless steel is also resistant to heat, although it can maintain its structural integrity at higher temperatures with a much lower chance of corrosion or deformation.

Durability

Both aluminized and stainless steel are strong, but aluminized steel can wear down if the protective coating is scratched or dinged. Stainless steel has a much higher tensile strength that is perfect for applications where the material is under intense mechanical stress.

Aesthetic Appearance

Stainless steel is the better option for applications in which aesthetic appearance is important, as aluminized steel has a duller finish that can become discolored due to high heat or exposure to harsh conditions over time.

We Have the Right Steel for the Right Application

Block Steel can provide you with either aluminized steel or stainless steel that is perfect for the scope of your project. Contact us today and let us know how we can help with your steel needs.