Search results
Results From The WOW.Com Content Network
Some silicon metal was also used as an alloying agent with iron. On the basis of silicon content, net production of ferrosilicon and miscellaneous silicon alloys in the US was 148,000 t in 2008. China is the major supplier, which in 2008 produced more ferrosilicon (4.9 Mt) than the rest of the world combined.
The world steel industry entered a crisis period during the end of the 1970s and early 1980s with the widespread recession, which occurred at that time. South Africa did not escape this recession and the local demand for steel fell as a result. A world oversupply situation occurred in the steel market with export prices falling to uneconomic ...
Ferrosilicon is used as a source of silicon to reduce metals from their oxides and to deoxidize steel and other ferrous alloys. This prevents the loss of carbon from the molten steel (so called blocking the heat); ferromanganese, spiegeleisen, calcium silicides, and many other materials are used for the same purpose. [5]
This page was last edited on 4 February 2015, at 05:40 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
When the metal had cooled and hardened, the smaller ingots (the "pigs") were simply broken from the runner (the "sow"), hence the name "pig iron". [4] As pig iron is intended for remelting, the uneven size of the ingots and the inclusion of small amounts of sand are insignificant issues when compared to the ease of casting and handling.
Mittal Steel at Saldanha Saldanha Iron Ore Harbor (2016) Saldanha Steel was a South African steel company originally formed as a partnership between Iscor Limited and the Industrial Development Corporation (IDC). [1] Saldanha Steel is now part of ArcelorMittal South Africa, which in turn is part of global steel company ArcelorMittal.
Non-oriented electrical silicon steel (image made with magneto-optical sensor and polarizer microscope) Electrical steel made without special processing to control crystal orientation, non-oriented steel, usually has a silicon level of 2 to 3.5% and has similar magnetic properties in all directions, i.e., it is isotropic. Cold-rolled non-grain ...
Metal prices are the prices of metal as a commodity that are traded in bulk at a predefined purity or grade. Metal can be split into three major categories, precious metals, industrial metals and other metals. Precious metals and industrial metals are priced by trading of those metals on commodities exchanges. [1]