TY - GEN AU - Nafziger,R.H. AU - Hartman,Alan D. AU - Farrell,Raymond F. TI - Trends in iron casting compositions as related to ferrous scrap quality and other variables, 1981-86 T2 - Bulletin PY - 1990/// CY - [Washington, D.C.] PB - U.S. Dept. of the Interior, Bureau of Mines KW - Iron-founding KW - United States KW - Scrap metals KW - Recycling KW - Iron alloys KW - Inclusions KW - Steel alloys ER -