Bright Bars are steel or metal bars that are produced by one or more cold finishing processes. The processes outlined below are known as Cold Finish processes or the the end products are known as cold finished because there is no or very little heat applied in the entire operation of converting them from hot rolled bars (also known as black bars) to cold finished bars or Bright Steel Bars.
Cold Drawing: Hot Rolled bar is descaled, pulled through Tungsten Carbide or High Speed Steel die, straightened & cut-to-length. Improves dimensional tolerance and shape, straightness, surface finish, strength and machinability.
Turning and Polishing: Remove bar surface of Hot Rolled bars with revolving cutting tool, rotate bar through rolls to straighten and polish, then cut-to-length. Improved dimensional tolerances and removes surface defects and decarburization.
Grinding: Abrasive wheel grinds off surface metal. Improves surface finish and achieves very close dimensional tolerances.
Cold Rolling: Descale, pass through series of rolling stands, strengthening and cut-to-length. Improves dimensional tolerance and shape, surface finish and strength.
There are some other related processes w.r.t bright bars.
Bright Bars have significant advantages and benefits over Hot Rolled Bars or Black Bars. Some of the most common areas of application of Bright Bars are listed here. Bright Bars can be offered in various conditions.