Copper and Tin in Steel Scrap Recycling

摘要

Copper is the key element related to surface defects of steel caused by a loss of ductility in the temperature range of 1050-1200 deg C. Tin increases the negative effect of copper. The main source of copper and tin in the steelmaking is obsolete scrap. The possibilities and limits of contaminated steel scrap recycling and methods of scrap purification are discussed.