Recommended Heat Treating Practice
Normalizing. Heat to 900 “C ( I650 OF). Cool in air
Annealing. Heat to 835 “C ( IS55 JF). Furnace cool to 650 “C ( I X0 “F). at arate not to exceed 78 “C (SO“F) per h
Hardening. Heat to 845 ‘C ( IS55 “F). Flame hardening carbonitriding. and liquid carburizinp are suitable surface hardening processes. Quench in water or brine. Rounds less than 6.35 mm (I/-l in.) diam may he oil quenched for full hardness