alpha iron

Alpha iron is a form of iron that is stable at temperatures below 910°C (1670°F). Iron is a relatively dense metal, making up about 5% of Earth's crust and is the fourth most abundant element. It exists in different crystalline forms depending on temperature, including alpha-ferrite (body-centered cubic structure) at room temperature, which transforms into austenite (face-centered cubic structure) at higher temperatures.123

Iron is primarily extracted from ores through mining, often using surface mining techniques due to cost-effectiveness. The extracted ore is then processed to increase its iron content, a process called concentration. This upgraded ore, often in a fine powder form, is then typically agglomerated into pellets for use in smelting processes like the blast furnace to produce iron and its alloys, such as steel.4256