Steel lintels come in all shapes and configurations. It is important to pick an off the shelf member that will support adequately all the loading.
When the normally available section is not available then different steel members are made to do a composite section. This is usually done so the the composite member is stronger in all axes and has rotational stability.
In the composite section above is a angle lintel with a steel plate welded to it using 6mm filet weld.










