What Is An Angle Iron？An angle iron is actually a long strip of steel with an L-shaped cross-section. The two sides of the angle iron are perpendicular to each other at a 90-degree angle.
What Is An Angle Iron？
Angle iron comes in two types: equal-sided angle iron, where the two sides of the L-shape are equal, and this is the most common type, usually expressed in millimeters as side width × side width × side thickness (∠40×40×6).
The other type is unequal-sided angle iron, expressed in millimeters as side width × side width × side thickness (∠100×60×5).
References
Steel Structure Design Standard
ASTM International (American Society for Testing and Materials)
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