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Trends in the Quality of Ferrous Scrap as Reflected in Iron Castings: 1981-84.
Nafziger-RH; Hartman-AD; Farrell-RF; Burlingame-RD
Afs Trans 1986 94:417-426
This paper describes a Bureau of Mines analysis of cast iron samples to determine if the level of tramp elements in charge materials is changing with time. Results have shown that the composition of ferrous scrap materials is changing with respect to a few tramp elements such as b, CO, and sn over the period 1981-1984. Significant regional variations with respect to as, CO, cr, cu, mg, ni, and p were also noted.
Afs Trans., V. 94, 1986, PP. 417-426
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Content source: National Institute for Occupational Safety and Health Education and Information Division