Team Logo. The Bethlehem Steel is a team in the United Soccer League. They are an affiliate of the Philadelphia Union. They get their name from a team that played in the early 20th century. Retrieved from "https://prosportsteams.fandom.com/wiki/Bethlehem_Steel?oldid=14601" Categories: USL Pro Teams Teams in Pennsylvania Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.