What Is Corten Steel—And Why Is It Used in Metalbirds?Updated a day ago

We make every Metalbird from premium 3mm Corten steel, also known as weathering steel—the same alloy used in world-famous outdoor sculptures, architecture, and landscape design. It’s rugged, raw, and built for decades in the wild.

Corten steel contains copper, chromium, and nickel, which allow it to form a protective patina when exposed to the elements. This isn’t flaky rust—it’s a weather-sealed surface layer that guards the steel beneath from further corrosion.

Think of it as armor with character. Instead of breaking down, your bird transforms. And that’s why architects, artists, and outdoor designers love it—and why we chose it to carry stories into the landscape.

Key benefits of Corten steel:

• Long-lasting outdoor durability (20+ years)

• Resistant to deep rust or structural damage

• Evolves in appearance—no two birds look the same

• Recyclable and low-waste