What is "angle iron"?

Angle iron refers to a type of structural steel that has an L-shaped cross-section. This profile consists of two legs that form a right angle to each other, which provides significant strength, making it useful in various applications within construction and structural support. Its L-shape makes it particularly valuable for bracing, framing, and reinforcement because it can effectively resist bending and twisting forces.

In contrast, a piece of structural steel with a rectangular cross-section is typically referred to as a rectangular beam or channel and does not possess the unique characteristics of angle iron. A fastener, while essential in ironwork, does not describe angle iron itself and serves a different function in connecting components. Lastly, a method for connecting two beams does not accurately characterize angle iron, as it is a piece of material rather than a technique. Angle iron is specifically notable for its structural properties and versatile applications in various types of construction projects.