Original Date: 08/26/1996
Revision Date: 01/18/2007
Information : Scrap Blending
Weirton Steel Corporation (WSC) uses the Basic Oxygen Plant (BOP) to manufacture steel. This process uses a charge of 75% molten iron from the blast furnace and 25% scrap metal. Although existing standards permitted the usage of various types and qualities of scrap metal for each charge, WSC often purchased higher quality and, in turn, more expensive scrap metal because of insufficient space to separate scrap metal at its existing scrap metal area.
In October 1995, WSC set up a secondary scrap metal area to separate various types and qualities of scrap metals, and developed better-defined technical requirements for acceptable blends of various scrap metals. The new scrap sorting area was equipped with a weight scale and the necessary material-handling equipment to transfer the proper blends to the primary scrap area. WSC could now purchase less expensive scrap metal and save millions of dollars annually. WSC continues to make improvements by maintaining a database of allowable blend combinations and by using portable spectrographic equipment to improve identification of scrap metals used.
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Point of Contact for this survey.