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A steel bar can be forged on an anvil to create steel weapons and armour, granting 37.5 Smithing experience per bar used. A list of steel items that can be smithed from steel bars and the Smithing levels required can be found on the Smithing tables.
Steel bars are commonly used to create cannonballs, ammunition used by the Dwarf multicannon. In order to create cannonballs, players must be a member, complete the Dwarf Cannon quest, possess an ammo mould, have some steel bars, and level 35 Smithing. Cannonballs are made by using a steel bar on a furnace, with an ammo mould in inventory or tool belt, yielding 4 cannonballs per bar. Players gain 25.5 Smithing experience per bar. Smithing cannonballs has a net income of 595 coins per steel bar at current prices.
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Steel bars are also the tertiary ingredient in infusing Steel minotaur pouches.
The mixture of any element with a pure metal. However, there are several elements regularly occurring in plain carbon steel as manufactured, such as carbon, manganese, silicon, phosphorous, sulfur, oxygen, nitrogen and hydrogen. Plain carbon steel is therefore an alloy of iron and carbon and these other elements are incidental to its manufacture. Steel does not become alloy steel until these elements are increased beyond their regular composition for a specific purpose, or until other metals are added in significant amounts for a specific purpose.
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