This is an A36; A59-50 Black Steel 5/8'' Diameter x 20' Round Bar.

Round bar is a steel bar with a smooth surface which is used for construction that does not request high strength reinforced concrete works. It is widely used on beam and column stirrups, pipelines, roads, small and medium-sized projects. Round bars have to be rolled into the appropriate shape. After continuous heating, it is the hot rolling procedure that helps the raw steel acquire the desired shape. The process is highly important for steel production.

A36 is the most common type of steel plate used in construction because of its ratio of strength to ductility, but it shows up in a wide range of industries due to its broad versatility. This grade is easily machined, welded, and formed, making it a versatile all-purpose steel. It is fairly ductile and can elongate to about 20% of its original length when testing its tensile strength. The combination of strength and ductility means it has excellent impact strength at room temperature. Because of its low carbon content, it can be heat treated without adverse effects on its properties. One disadvantage to A36 steel is that it does not have high corrosion resistance due to its low levels of nickel and chromium.

Hot Rolled Commercial quality bars Produced from low carbon steel and intended for uses involving simple bending or moderate drawing and welding. A wide variety of applications from agriculture implements to automotive equipment from blower and ventilating systems to hot air registers, from stub barrels and drums to bind and partitions.

 This round bar can be custom cut to lengths of your choice, please click "add cuts" to customize the exact measurements you need.