| Breaker | (english) Uncoiler rolls through which the strip passes; composed of a mandrel and leveling rolls which unwind the strip prior to processing through the Pickler. Breaker rolls assist in breaking up the Hot Mill surface scale. |
| Bridle | (english) A set of rolls used to maintain tension on the strip as it goes through the line. |
| Bridle Snubber | (english) The roll above the bridle rolls used to thread the strip. Also is used to steer the strip through the bridle. |
| Bright Drawing | (english) The process of drawing hot rolled steel through a die to impart close dimensional tolerances, a bright scale free surface and improved mechanical properties. The product is termed bright steel. |
| Broach | (english) A long, tapered cutting tool with serrations which,when forced through a hole or across a surface, cuts a desired shape or size. |
| Broaching | (english) Smoothing machined holes or outside surfaces of castings by drawing pushing on or more broaches (special cutting tools) through the roughed out hole. |
| Broaching 2 | (english) Multiple shaving, accomplished by pushing a tool with stepped cutting edges along the piece, particularly through holes. |
| Burnishing 2 | (english) Smoothing surfaces through friction between the material and material such as hardened metal media. |
| Burnthrough | (english) In shell molding, resin burned out too soon. |
| Busheling | (english) A widely traded form of steel scrap consisting of sheet clips and stampings from metal production. Bushel baskets were used to collect the material through World War II, giving rise to the term. |