1018 steel is the most common of cold-rolled steels, available in round rod, square bar, rectangle bar, or flat bar steel.
Cold Rolled Steel 1018 is perfect for drilling, machining, sawing, and threading,
Cold Rolled steel offers a better surface finish compared to Hot Rolled Steel as it's easily polished, but the steel costs a couple dollars more for it's strength, ductility, and ease of machining.
The alloy is a free machining grade that is often used in high volume screw machine parts applications. It is commonly made into shafts, spindles, pins, rods, sprocket assemblies and an incredibly wide variety of component parts.