Steel is a mass produced and common resource used in all manner of buildings and starships. It is itself an alloy of iron, containing traces of other elements such as manganese, phosphorous, silicone and sulfur. The primary bonding agent is carbon, which strengthens the outcome of the cast. Steel is refined by melting raw ore found within planets. Upon melting the ore within a furnace, the molten metal is then channeled into a smelter where it is continually processed until the proper amount of carbon is present in the alloy.
At this point, the steel is cooled and shaped into slabs or flattened into sheet metal. This entire process can be completed across an automated assembly line, making Steel Refineries fairly deserted for the most part. The only colonists needed are foreman to ensure the automated elements of the assembly line do not malfunction.