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Metallurgical Effects of Impurities in Recycled Copper Alloys.
Makar HV; Riley WD
MISSING :19 pages
As part of a continuing research program for conserving domestic mineral resources, the Bureau of Mines is investigating new and improved scrap identification techniques to improve sorted mixed scrap purity. This report focuses on various classes of wrought and cast copper alloys produced with recycled scrap. Based on a survey of the literature, principal alloys, such as the brasses and bronzes, are examined with respect to impurity elements such as lead, antimony, iron, chromium, and aluminum are discussed. The metallurgical effects described include hot shortness, fire crackling, and undesirable phase transformations.
IH; Information Circular;
Page last reviewed: November 12, 2021
Content source: National Institute for Occupational Safety and Health Education and Information Division