Steel Pipe BollardsSteel Pipe Bollards Highest Quality American Made Steel Our Steel Pipe Bollards are safety bollards made from 100% U. S. Steel that are designed to protect buildings, pedestrians, and equipment from vehicle or forklift collisions. With a massive inventory of steel pipe, we ensures the best prices and lead times possible. Available in any size from 4 , 8 pipe, the steel bollards can be either base plate mounted or core installed. Ask about custom