IRON, like most metals, is found in the Earth's crust only in the form of an ore, i.e. combined with other elements such as oxygen or sulfur. Typical iron-containing minerals include Fe2O3—the form of iron oxide found as the mineral hematite, and FeS2—pyrite. Iron is extracted from ore by removing oxygen and combining the ore with a preferred chemical partner such as carbon. This process is known as smelting.
Steel is an alloy consisting mostly of iron, with carbon content between 0.2% and 2.1% by weight, depending on the grade. Carbon is the most cost-effective alloying material for iron, but various other alloying elements are used such as manganese, chromium, vanadium, and tungsten.
- TMT Reinforcement Bars.
- CTD Reinforcement Bars.
- Heavy Melting Scrap – Grade I.
- Heavy Melting Scrap – Grade II.
- Re-rollable Scrap.
- Ball Bearings.
- Used Batteries.
|