a Special Bar Quality Medium-Carbon Machinery Steel
General purpose, fine grain, machinery steel suitable for a wide range of applications in the condition as supplied – approximately 90,000 psi (620 N/mm2) depending on the size of section. This steel is primarily water- hardening, but may also be quenched in oil. Excellent wear resistance can be obtained by flame or induction hardening. Care required if welding, due to higher carbon content. Good machinability
Shafts, axles, spindles, bolts, lightly stressed gears, machined parts of all types.