ANSI B16.5 Cross-over Flanges are called slip-on flanges because they slide over the pipe. These flanges are manufactured with an internal diameter greater than the outside diameter of the pipe. At the base and top of the Flanges, a filet weld joins these flanges to the tube. When using slip-on flanges, the face should be level or elevated. Carbon steel slip-on pipe flanges, solidified steel slip-on pipe flanges, and alloy steel slip-on pipe flanges are among the materials used in these flanges. These flanges can hold the plan during the limit rapidly, are sealed shut, and require little assistance. These amazing qualities have made these flanges incredibly popular across a wide range of industries.