flange

a projecting flat rim or disc, with or without bolt holes, for attaching to or assembling on the end of the pipe, fitting or other component

<pipe>
<cover> internally threaded pipe fitting designed to provide a short collar or cover
<joining> projecting flat rim or disc that is cast, welded, screwed or pressed onto the end of a pipe or fitting or to a fixture to enable it to be bolted or joined
See also: blank flange; loose flange; insulating pipe joint

<structural section> upper or lower horizontal part of a rolled structural shape, such as the compression and tension flange in a steel joist or girder