SAE Series Round Bars are solid cylindrical bars manufactured according to Society of Automotive Engineers (SAE) steel grade classifications. These bars cover a wide range of carbon steels and alloy steels, such as SAE 1018, 1045, 4140, 4340, and more, each designed for specific mechanical and chemical properties. SAE bars are widely used in general engineering, automotive components, machine building, and tool fabrication due to their diverse range of strengths, hardness, and machinability.
SAE round bars conform to standards such as ASTM A29/A29M and are available in hot rolled, cold drawn, or normalized conditions. For example, SAE 1018 offers excellent weldability and machinability with low carbon content, while SAE 4140 and 4340 provide higher tensile strength, toughness, and fatigue resistance due to alloying elements like chromium and molybdenum.
