A specified curvature of a flange in the plane of the web is known as:

The term that describes the specified curvature of a flange in the plane of the web is known as sweep. This refers to the intentional curvature that is applied to the flanges of a structural member so as to improve performance and load distribution. The sweep is typically designed to counteract deflections or stresses that may occur when the structural component is subjected to load.

Understanding the significance of sweep is important in welding and structural engineering, as it can impact the steel member's load-bearing capacity and overall structural integrity. Engineers consider sweep when designing members to ensure that they can accommodate various forces while maintaining their desired shape and function throughout their service life.

In the context of the other terminology, camber generally refers to a slight arch or curve intentionally introduced into a beam to aid in load distribution, but it differs from sweep in that camber is typically a vertical deviation. Warpage refers to an undesired distortion or deformation, often due to thermal effects, while tilt usually implies an angular deviation from the vertical or horizontal orientation rather than a curvature of a flange.