| Burning 2 | (english) Heating a metal beyond the temperature limits allowable for the desired heat treatment, or beyond the point where serious oxidation or other detrimental action begins. |
| Burnishing | (english) Developing a smooth finish on a metal by tumbling or rubbing with a polished hand tool. |
| Burnishing 2 | (english) Smoothing surfaces through friction between the material and material such as hardened metal media. |
| Burnt | (english) A definition applying to material which has been permanently damaged by over-heating. |
| Burnt Rubber | (english) Small or large black spots that generally show up on surface and are generally caused by pickling steel too hot. |
| Burnthrough | (english) In shell molding, resin burned out too soon. |
| Burr | (english) The very subtle ridge on the edge of strip steel left by cutting operations such as slitting, trimming, shearing, or blanking. For example, as a steel processor trims the sides of the sheet steel parallel or cuts a sheet of steel into strips, its edges will bend with the direction of the cut. |
| Burr 2 | (english) Roughness left by a cutting operation such as slitting, shearing, blanking , etc. |
| Burr Mashers | (english) Devices used to remove build up on edge of strip after the slitting process. |
| BURST PRESSURE | (english) The level of pressure at which a component, pipe, tube, hose or other fluid passage will burst during application of internal pressure. Normally 2.5 - 4.0 times working pressure. |