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| Slags are nonmetallic byproducts of many metallurgical operations and consist primarily of calcium, magnesium, and aluminum silicates in various combinations. Iron and steel slags are coproducts of iron and steel manufacturing. In the production of iron, the blast furnace is charged with iron ore, fluxing agents, usually limestone and dolomite, and coke as fuel and the reducing agent. The iron ore is a mixture of iron oxides, silica, and alumina. From this and the added fluxing agents molten slag and iron are formed. The physical characteristics such as density, porosity, and particle size, are affected by the cooling rates and chemical composition. Depending on the cooling method, three types of iron slag are produced— air cooled, expanded, and granulated— that have different types of applications. |
Publications
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Annual Publications
- Iron and Steel Slag
PDF Format:
| 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | - Appendixes
- Iron and Steel Slag
PDF Format:
| 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 |
XLS Format:
| 2002 | 2003 | 2004 | 2005 | 2006 | - Archive
| 1932-1993 |
Special Publications
Contact
- USGS Mineral Commodity Specialist
Hendrik van Oss
Phone: 703-648-7712
Fax: 703-648-7757
Email: hvanoss@usgs.gov
Links
- USGS Minerals Information: Iron and Steel
- USGS Minerals Information: Iron and Steel Scrap
- USGS Minerals Information: Iron Ore
