Free Cutting Steel
Free cutting steel (free machining steel) contains sulfur, tellurium, or lead (0.15%~0.35%) to improve machinability and chip breaking.
Free cutting steel (free machining steel) is engineered to form small, easily broken chips during machining. Breaking chips into small fragments prevents chip entanglement in CNC machinery and enables automated equipment to operate continuously without manual intervention. Free cutting steel allows higher cutting speeds, larger feed rates, and longer tool life, offsetting its material cost through higher machining productivity and superior surface finish.





