If you are looking to sell your shreddable steel to a local scrap yard, you can contact them and ask if they accept it. Many scrap yards will accept shreddable steel, as it is the equivalent of light iron to most scrap yards. Found in many general materials and items, steel will be magnetic and can be brought to your scrap yard with additional ferrous metals you may have.
Yards around Ashburn, VA that accept Shreddable Steel