Round Steel is refer to the solid section for circular strip steel. Its specifications expressed as a number of mm in diameter, such as "50" indicates that the diameter of 50 mm round steel. Round steel divides into hot rolling, forging and cold drawn three kinds.The specifications of the hot rolled round steel of 5.5 to 250 mm.Among them: 5.5-25 mm small round steel are mostly with straight into bundles of supplies, commonly used for steel, bolt, and various mechanical parts.More than 25mm's round steel mainly used in the manufacture of mechanical parts and seamless steel tube billet.
Material：45#，Stainless steel, carbon
Weight calculation formula：W= 0.006165 ×d×d d=Diameter mm