The standard cold-formed carbon steel structural tubing, A500 Hot Roll Steel is the most common type of steel tubing in North America. It exhibits good strength, weldability, and low cost. A500 is exclusively used in structural tubing.
A513 steel is a high-carbon alloy that offers a uniform grain structure which gives it a strong, seamless and consistent structure. The high carbon content increases strength and rigidity while slightly lowering machinability and weldability. Almost exclusively used in the creation of DOM tubing, A513 is typically used in the automotive, construction and mechanical industries.