The steel platebody is the third-weakest standard platebody for non-members. They require a Defence level of 20 to equip. They provide decent defence against ranged attacks, but are vulnerable to magic attacks, as with all platebodies.
A player with 48 Smithing can produce a steel platebody by using five steel bars on an anvil, granting 187.5 Smithing experience. Players may then either use the platebody, sell it on the Grand Exchange or use High Alchemy on it for a respectable return.