What is the common angle used for bends in sheet metal?

The most common angle used for bends in sheet metal is 90 degrees. Bending sheet metal at this angle is a standard practice in the industry for creating flanges, seams, and structural components. A 90-degree bend allows for precise fitting and connection of parts, ensuring structural integrity and stability in various applications. This angle is particularly useful in creating boxes, frames, and panels that require rigidity and alignment.

In many instances, a 90-degree bend can be easily achieved using various bending tools and techniques, making it a practical choice for fabricators. Additionally, the geometry of a 90-degree bend is conducive to calculations involving the bend allowance, which is crucial for ensuring accurate cutting and folding of materials in sheet metal work.