High manganese steel is good. High manganese steel is better because of its high manganese content, high strength and wide application range, while rebar has low manganese content, low strength and limited application range. High manganese steel with high carbon content is often used to manufacture shovel teeth of excavators, rolling walls and crushing walls of cone crushers and jaw crushers, lining plates of ball mills, railway turnouts, plate hammers and hammers. Rebar is a common name for hot-rolled ribbed steel bars.