Improve the sulfur and phosphorus content of leaded free cutting steel, carbon content less than 0.15, Mn 0.85 to 1.15, phosphorus 0.04 to 0.09, sulfur 0.26 to 0.35, 0.1 and 0.35 in the lead.
Cutting: cutting and drilling for deep, good cut-off
Heat treatment: HRC carburizing skin 0.5MM 60 degrees can not be quenched and Tolerance: CD ± 0.03 CG ± 0.01 secondary: 10% of the cold lead pull, the second cutting, drilling well
Uses: cutting a variety of products subject to secondary processing such as information, precision, communication, 3C appliances good machinability, the cutting of materials processing in general
