| Bridle | (english) A set of rolls used to maintain tension on the strip as it goes through the line. |
| Bridle Rolls | (english) A series of neoprene or steel rolls. |
| Bridle Unit | (english) A three-roll cluster used to control line tension at strategic locations on the line. |
| Bridling | (english) The cold working of dead soft annealed strip metal immediately prior to a forming, bending, or drawing operation. A process designed to prevent the formulation of Luder's lines. Caution-Bridled metal should be used promptly and not permitted to (of itself) return to its pre-bridled condition. |
| Bright Annealed Wire | (english) Steel wire bright drawn and annealed in controlled non-oxidizing atmosphere so that surface oxidation is reduced to a minimum and the surface remains relatively bright. |
| Bright Annealing | (english) A process carried out usually in a controlled furnace atmosphere, so surface does not oxidize, remaining bright. |
| Bright Annealing 2 | (english) The process of annealing in a protective atmosphere so as to prevent discoloration of the bright surface desired. |
| Bright Bessemer Wire | (english) Stiff bright wire of hard temper. Normally wire is drawn down to size without annealing. |
| Brine | (english) A saltwater solution for quenching or cooling when heat treating steel. |
| Brinell Hardness | (english) The hardness of a metal or part, as represented by the number obtained from the ratio between the load applied on the spherical area of the impression made by a steel ball forced into the surface of the material tested. |